Well, I am an Apple sucker, and I would buy it. Call it AppleView, iTV, iCast, iNetwork, or just Apple Network.
I doubt it's going to happen anytime soon. Right now there are so many competitors and consistently changing tech and that wouldn't fit Apple's business model. Apple would want to update it once every 18 months, and customers would wonder why they don't reduce the price on ancient technology.
People would buy it for three months and then buyers would move to the next new tv with twice the capabilities, and Apple would be like wtf, why aren't people buying this? Do we actually have to update it? That's no fair... we cannot make 900% margins like this! No fair no fair no fair, Steve yells... he's on the phone in a conference call with Sony, Vizio, Sharp and etc. WTF, why did you guys use a touch screen multitouch remote, you stole my tech! I am mad mad mad! All of you must burn with Google and their damn Nexus One.
I still see them developing a better AppleTV and letting us buy content and share it wirelessly between the AppleTV and iPad(s).