You don't need iPhone / iPod sync functionality. All you need is for Enqueue to sync back to the iTunes library. So when you change a rating or playlist in Enqueue, it should automatically update the iTunes library and the change should be reflected in iTunes.
Then I can just use iTunes to sync my iPhone / iPod.
I'd have to agree with this. I also use the iTunes music store, so it'd be nice if Enqueue kept up to date with music downloads (and synced music imports to Enqueue back to iTunes too).
Then I can just use iTunes to sync my iPhone / iPod.