I was wondering earlier when and if someone could write a piece of software which makes any mac pretend it was an Apple TV. One of the features I like about the new Apple TV is the ability to 'push' and 'sync' music and video onto the device from any iTunes library, So.... if someone could figure out how to emulate an Apple TV's response to iTunes - you could possibly make any computer pretend to be an Apple TV and sync your music to any computer!
There are programs out there like SyncOTunes and SlingShot, these are all rsync based with some AppleScript to update iTunes' library - no disrespect to their authors, but they are separate applications. The Apple TV emulation would make the whole thing seamless and integrated within iTunes.
Perhaps I should have a look at this, although this may mean purchasing an Apple TV, which, until it supports DivX out of the box (or post installable without warranty voiding) I'm not interested in :)