TUAW reader Mike writes that under iTunes 5:

If you try syncing videocasts to your iPod via iTunes5, it tells you that your 'particular model' of iPod is incapable of playing video.

A hint of things to come? Probably. Don't hold your breath, though. There's been an OGG icon lurking in there since 4.5, and still no love.
 

iTunes 5 shuffle got more random