I have an iPod Touch 16GB. I haven't used other Apple products so I can't comment, but the iTunes interface is really really bad even on an iTouch. I tried managing some songs in my iTouch, and ended up spending an entire day trying to do some simple stuff and even then met with only partial success. Seriously, I think that a DOS command line interface would have been more user friendly.
I see Apple fans harping about how user friendly and sensible Apple designs are and how they "just work". While it may be true for some things, I'm not sure how they are able to say this when the most popular Apple software (iTunes) is so horrible.
They do make good looking units though.
The touchscreen is good thats about it. I brought it in the hope it can be hacked and totally liberated from Apples clutches. Not so easy. Stay away from Apple if you can ...
Regards