Looks like VLC for iPhone and iPad is about to be pulled from the App Store because the Open Source Powers That Be don't believe Apple's iTunes App Store is compatible with the GPL components of the app.
Basically, anything under the GPL has to be freely transferable to anyone without restriction. Since the App Store places FairPlay DRM even on free apps like VLC, even though anyone can still download them, that's considered a restriction.
The long and the short of it is this -- if you want VLC for iPhone or iPad, go get it now.
UPDATE: Ars has a great write up on why the issue may not be as cut and dried, and whether or not VLC really will be pu