Re: real iphone tweak
Unfortunately not possible at the moment. Interfacing with the iPhone over USB requires iTunes' MobileDevice.dll which is useless in Linux, even in wine.
So far the only information I've seen of anyone working on talking to the iPhone/iPT over USB in Linux is here on Geohot's blog.
Aside from importing your photos, anything to do with the iPhone in Linux has to be done over wifi (which requires jailbreak on either Mac or Windows first.)
"This would make more difference if it made any difference at all; but it doesn't make any difference at all, because you are listening to a conversation among dead businesses." -- Eben Moglen