Check here for a list of audio formats supported by the Apple iPhone.
I've written an ogg lib for iphone, so yes it's possible now.
Care to share a link? Have you released it as some kind of open source?
What the fuck is "some kind of open source"? Something is either open source or it isn't.
RTFM before being rude ...
Moron's code doesn't work so he badmouths open source
This is an interesting website. The content and the information in the website is very impressive.
If you try to play an Ogg Vorbis file, the media player will hang indefinitely. Only a sub-standard software developer (e.g. Apple) would allow this to happen. A quality software developer would at least implement a check in the media player to inform the user that the format is not one which is supported.