Are there any apps you can't get for iPhone? So far, I can LJ, Twitter, and Facebook on iPhone. I can MSN on iPhone (and really annoy Sarah by talking with her on MSN when I'm in the same room as her...). I can while away a happy hour or several by playing Sudoku and Bejeweled 2. Then there's the iTunes/iPod, web browsing, email, maps, camera, alarm & timer, a neat "to-do" list app I downloaded, the Radio Times app.
I can even use it as a 'phone, should I be so inclined.
Mind you, no LibraryThing app yet. Pity, that'd be useful.