I'm using the latest 1485 build and the syncing process proceeded fine. However, when I check my iPod, there are only 18 songs, while a check on iTunes registers the rest of the 5000+ songs under "other" instead of "audio". Re-syncing does not solve the problem and the second sync resulted in only 17 songs being reported to be on the device. It seems the tracks are on the iPod but it just doesn't recognise them. On MM, the tracks show up as per normal on the iPod's device pane. I'm running on iOS 5.0.1 and Windows Vista Home Basic.
Please inform if there is any other relevant information I should provide.