Quote:
- some kind of video streaming variant on the AirPort Extreme

And lastly it looks like this is sort of true. They've shown the iTV (for which they're thankfully thinking up a new name):

Quote:
802.11
USB2
Ehternet
HDMI connector for all new big-screen flat panel TVs
Component video (RGB)
analog audio RCA jacks
Optical audio
Controled with the familiar white remote
Hooks directly to your screen or to your set-top box as another input, or to your receiver.