As this thread's been resurrected, I thought I'd ask what GPS track-logging apps people recommend. A friend of mine likes MotionX, but he has an older version of the iPhone which doesn't have the compass and maps built in, so I find half of MotionX (I'm using the free version - I haven't paid for the full upgrade so far) duplicates what I've already got.
As for apps, so far I've just got free ones: Facebook, Twitterific (I signed up for Twitter yesterday. The adverts on the app are already annoying me - is there a better Twitter app out there?), Amazon, NatWest, Google, Google Earth. Oh, and Net-a-Porter - I'd heard it was a very good example of what shopping apps should look like, so I was curious. They're right - it's beautifully designed, but there's no way I would ever spend £124 on a lacy thong.
What else do people recommend for a Surrey cycle-commuting iPhone owner? I'm tempted to get the Good Beer Guide app for the "Direct me to the nearest good pub" function, but I'm going to wait until I need it before installing the free seven-day trial.