Thanks to all for some very welcome suggestions. Having read through the Wiki, it all looks pretty straight forward. Now to generate some trails. I have (on loan) a O2 XDA which will run GPS Cycle Computer, but when I hand it back, I am left with my iPhone. I have looked on the AppStore for suitable GPS trail software, but all the apps listed have c**p reviews! Does anyone have experience of iPhone (3G) based apps for making trails?

Rob