1) sorry, but I had no idea there was no compass on the iPod Touch. (Is that supposed to be common knowledge?)
That explains why the App runs error-free but doesn't actually do what its supposed to.
2) The author does not indicate specifically that it won't work on iPod Touch.
3) I was wrong about my own device - I actually have a 4th Gen. iPod Touch, not a 2nd. Gen. (but I guess that doesn't really matter if none of 'em support compass anyway...)
4) thanks for pointing out the other problems with this particular lesson - especially the memory leak one and the landscape/portrait mode issues - good to know.
I'll be getting an iPhone soon, so I look forward to testing/fixing this app on it...
thanks as usual Bob