I read this thread and find myself scratching my head too. Almost everyone see this as amazing news and I can't think of any good reason why I would need to buy this thing.
It takes out the good thing about a portable system (its portability and integrated screen)
and lets you play its library on a TV screen.
Given that you need to buy a controller it costs almost the same as a basic PS3... why not just buy a PS3? "because I want to play Vita games on it" "WHY NOT JUST BUY A VITA THEN?

"
Old man yelling at cloud I guess, but I don't get the appeal. Good for you guys that will give use to this device tho.