[one1]

Is it a hardware feature in the 3g or is it for all 2.0 firmwares?

[Eurisko]

Originally Posted by Conn18

I'm a bit confused.. what does "The iPhone Phones Home" mean ?

When a 3rd party program is run, the iPhone will contact an Apple webserver to verify its validity. If it has been black listed by Apple, it will be disabled and removed from the phone.

[macmaker]

Really people,
if you dont know anything, please just dont write nonsense!
The iPhone does in fact NOT contact Apple to tell them what 3rd party apps you are using.
It only downloads (not uploads) a blacklist with programs forbidden by Apple, up until now there is no app on this list, and only programs using GPS can be disabled.

The iPhone does NOT send ANY information about the programs you are using to Apple (at least no other information than the feedback for AppStore-Apps you can give after deleting them)