iOS4 support is still limited on GNU/Linux at this point.
1. Rhythmbox sees the iPhone, and can transfer files to it, but doesn't update the iPhones database, so the iPod app doesn't see the music files.
- The cause is that libgpod doesn't support iOS4 yet (July 11, 2010).
With a little side of applesauce...
©2006 Shannon Eric Peevey