Where has that been stated?Since the apple TV requires HDCP for HD rentals, i doubt you'll be able to view them via component.
apple TV is not that expensive, so if you want HD movies without a big bulky HD-DVD or Blu-Ray player, it's a good buy
Too bad you can't buy the movies. Would be cool if aTV could download them and store on time capsule or an external drive.
I seriously doubt that the aTV rentals require the exclusive use of the HDMI port.
Heck, current BluRay and HD-DVD players currently do not have their component ports disabled. Why would the aTV have this restriction?
ft