Framerate is cut in half because it doesn't seem the PS3 is strong enough or something.. It's a little choppy at parts, I guess.
But this is good news, it definitely gives the PS3 a little edge in pricing I think.. What would you rather get a $479 dollar x-box elite or a $499 PS3..
PS3s don't seem to break like Xbox's do and they have a blu-ray player for an extra 20 bucks. However, most of the best exclusives are coming out on 360.. and somehow the 360 is more powerful even though the PS3 came out a year later, they put the power in the wrong spot.
I'll definitely be copping a PS3 within the next few months, though.