I like Songbird a lot...
might want to report this as a bug to the songbird team, they tend to be pretty good at adressing problems. Its probably confused by the two storage things....
Great idea. I pulled a couple Songbird nightly builds, and reported bugs accordingly. So far, I'm actually having my best syncing experience with WMP12. Who knew? Back to Songbird:
1.43 (current): doesn't recognize onboard storage
1.71a (stable nightly): recognizes storage - both onboard and SD - though it does mix them up. Fails to pick up full codec support on device, however - only mp3 - meaning that Songbird refuses to sync all other (device supported) filetypes.
1.8a (nightly): Fails to see both storage areas on device.
Moving on to the device. Anyone used/like MixZing? Much better than native players. Automatically downloads artwork, reads tags properly, suggests music based upon user's library, allows you to choose between internal and external storage, scrobbles to last.fm... lots of good stuff. It doesn't give file info: bit-rate, file size, file type, sampling frequency, bit-depth, etc. - but maybe that's stuff most people don't care about. I've also gathered 3 is a pretty good player - sadly, not compatible with Incredible yet.
All the best!