Awesome comment Milliams. It just goes to show, the OpenStreetMap community will always go out of their way to help and give feedback.

Looks good. Keep up the hiking trail mapping. We like that!

You can probably drop a little detail from some of your trails data. I don't know if you're converting directly from GPS traces somehow, but you've got some weird kinks in your footpath. here for example (Not rendering yet, but do '+' and tick 'data' view)

There's other stuff we could add from aerial imagery here. You came to a viewpoint here which I can see is actually a big cliff, visible in bing imagery. So you could draw that in as a https://wiki.openstreetmap.org/wiki/Tag:natural=cliff way (or I could for that matter)

boundary of the landuse=forest is obviously not matching the actual boundary of the forest. It chould probably be shifted using bing, to loop around the visibly forested area. This data has been imported from some government source "NYDEC"? by RussNelson, so maybe represents some government designated area of forest (in which case it could perhaps remain in the current place with a different park boundary tag of some sort) That's a little confusing for new mappers. RussNelson will know more about it.

This looks really cool guys!

routing like this?. Yeah why not do a restriction relation. No left turn. I don't think we have a rule about there being a sign in place.

@alexz. bank tube station is probably the best one for multiple entrances! (think they're all already mapped now)

@Tom Chance. It's a shame OSM Mapper isn't permalinkable. The top 20 source tags look like this (fingers crossed this HTML works):

As well as failing to take account of source tags on changeset, you can see there's a lot of semi-colon value separators to deal with too. But yeah quite a lot messy capitalization and other typing variations.

@Steve Chilton. Interesting. Maybe they spent 5 years mapping 45 years bickering about which tags to input into their 19th century map database :-) The process of mapping contour lines sounds like fun. Contour line mapping party??

Which one? We have four events listed on Thursday: Augsburg, Berlin, Roma, and Innsbruck!

Is Cute Bar on the map? I see Peluqueria Tu Salon near the location you pointed at there, but no cute bar. Were you trying to work out how to add it??

funnily enough that's kind of my fault. It looks like he's using my old OpenLayers simple example. I will message him with a fix. ...although I'm not sure if how keen he is to receive visitors to this site anyway!

Yeah I don't know why Nominatim thinks Euston road is in Hertfordshire. Classifying it as both Bloomsbury and Somers Town is a bit OTT too.

Today I came acros a nice tool to show the position of hi-res bing coverage based on the header dates, and it turns out Scotland is indeed a weird stripy pattern: http://ant.dev.openstreetmap.org/bingimageanalyzer/?lat=56.64082844285546&lon=-3.569754909594176&zoom=6

Hi there. Good to see some hiking stuff getting added around there. I was just wondering if we have any other sources which might help you. I think the out of copyright 7th series maps haven't been scanned yet for that area, but you can see the area on OS StreetView (also available as a 'Background' setting if you're editing the area in Potlatch 2) That suggests it's spelt "Bullochreg".

There's quite a few other online routing services based on OpenStreetMap not just MapQuest.

Long distance routing can throw up some interesting data problems. The Dublin to Shanghai route makes me wonder if this road should connect. No decent bing imagery there unfortunately. We need someone to actually go from Dublin to Shanghai!

OSM routing in the U.S. often throws up TIGER fixup problems.

Wrong side of the planet, otherwise I'd be there! But speaking of campuses. Check out this nice OSM powered interactive campus map: http://maps.rdms.udel.edu/map/index.php Some inspiration for you!

Disagreements? In the OpenStreetMap community? Never!

You could ask this question on the mailing lists, but you'd probably start an argument :-)

Ah yeah. But the logo actually has two gliders sat on top of eachother

00100
01000
01110
00100
01000
01110

I tried it. It doesn't work, although it does do interesting things for a few generations.

Some nice mapping there! Not sure where you're trying to route exactly. Maybe you can post a CloudMade routing URL such as: http://maps.cloudmade.com/?lat=14.556991&lng=121.023588&zoom=18&directions=14.557971884196188,121.0226172208786,14.556632295881698,121.02531552314758&travel=foot&styleId=1&opened_tab=1 (use the 'share' button)

Nice presentation. I have some corrections/thoughts on some slides

Slide 22 - ...and bing imagery too now!

Slide 25 - Osmarender (perhaps more correctly, the tiles@home project) is no longer updating faster than the mapnik renderer. In theory distributed rendering might be a boost, but in practice mapnik on one machine can blast through the rendering tasks fast enough to cope with minutely diff updates, meanwhile tiles@home gets slowed down by upload bandwidth.

Slide 34 - Not sure if CloudMade are actually maintaining better uptime than the main OSM tile server these days. A reason for using CloudMade is to have paid-for support & guarantees. The central OSM tile server is not a guaranteed service (Tile usage policy)

Slide 16 - I would've thought the key point to add here, is that most free "Cloud" services provide flexible mash-up APIs (the basemap and geocoding examples of the previous slides) but do not provide access to their raw underlying data map data. OpenStreetMap does

I'm trying to picture end-uses which utility companies might have. I tend to think of them deciding where to dig a hole in the road using ultra-detailed "mastermap" GIS systems. Clearly OSM doesn't offer the kind of detail and accuracy (e.g. we don't have the width of sidewalks and the position of the curb down to the centimetre, and we're not really geared up to deal with that level of accuracy even if we did have the data) So perhaps you should mention that limitation up-front.

A selling point you didn't mention though: Licensed datasets, which companies may use internally, cannot be so easily re-published (e.g. on the web) without hitting restrictions. Some publishing tasks may not require ultra-detailed base maps, e.g. a map of where roadworks are being carried out in a city. Web mapping services are ideally suited to this.

I was going to suggest you get in touch with Peter Batty, but I see you're already referencing him on slide 33. Another suggestion for you SmallWorld experts. It could be helpful if you created a wiki page on SmallWorld. There's a red link on this page just waiting to be filled in. On Slides 29 and 30 you seem to be saying there's some built-in ways of working with OSM. That kind of thing could be documented on the OSM wiki. Also look at this from the point of view of explaining to OSMers about the needs of SmallWorld users. How could working with OSM be made easier? Detail SmallWorld data formats for which we might be able to develop converters.

You didn't actually mention the base URL for your new service: http://openstreetmap.us/xapi/api/0.6/

It works! Example: All the libraries in London : http://openstreetmap.us/xapi/api/0.6/*[https://wiki.openstreetmap.org/wiki/Tag:amenity=library][bbox=-0.57,51.24,0.31,51.75]

Great work!

Well there's certainly worse stuff "clogging the blog" (new users keep thinking it's a good place to ask questions)

I think at this stage the license working group would like to see people spread the word, and encourage others to click to accept. My understanding is that they're deliberately holding back on publicity, while making final tweaks the contributor terms. In the meantime why not support it with a diary entry?

I wouldn't recommend writing an OpenStreetMap editor app as your first iPhone app. An OpenStreetMap editor is a pretty complicated thing. You have to consider authenticating, bundling edits into changsets, dealing with conflicts etc, and yes... downloading whole bboxs of sometimes very complexly interlinked data. Although the designers and developers of the OpenStreetMap API would like to encourage people to develop new editors, it's not really an easy afternoon programming exercise.

You might want to check out the OpenStreetBugs API as a way of allowing simple contributions.

A lot of mobile developers have created apps backed onto their own server-side APIs, with OpenStreetMap data fed in as planet downloads. This enables you to tackle problems like low-bandwidth map bbox transfers and data filtering by tag, features which have so far been left out of the main API.