i have been looking at this aswell but i think my brother was on about geting it, so i am going to hold out for a cupple of months to see if it worth it.
I have had a xbox rrod on me, and i killed my first ps3 (they dont liked to be droped), however even if i did get this i will still buy the next xbox and PS that comes out for some games (kill zone, resistance, halo) and i have mates who play on live or psn who probably wont get this, as they love there xbox/ps3 and they hate the counterpart console (people are strange). This isnt going to kill the big 2 even if it is way better people dont like change that much and fear it lol.
look at it this way windows is crap, overpriced and eveyone uses it, Linux can do all that windows can do and then more, it comes in many flavors is free and yet less than 1% of people use it?????
have fun Dan