Got my PS3 yesterday (PSN sugapunk2007)
Impressions
WHAT I LIKE:
I have to say, Motorstorm has impressed the hell out of me.
I HATED the game for the first 30 minutes, but now I've got the hang of it I friggin' love it. I also love the fact that it's rock hard (well, I suck at it, anyway). It means that there will be some seriously longetivity in it after all for me.
I have also been majorly impressed with the PQ of the HD Casino Royale trailer - totally smokes the PQ of anything I've downloaded of XBL.
Some of the PSN games feel much more fully featured than XBLA games. I'm surprised there hasn't been more talk of Lemmings on here as IMO it's clear that Team 17 spent a lot more time and money on this than they did on Worms XBLA. Gripshift is well polished and Tekken DR looks better than expected.
Fast, slick interface. Not as girl-friendly as 360 but much faster to access stuff.
WHAT I DON'T LIKE
Outside of Motorstorm, graphics have failed to impress. I'm yet to see a game on the PS3 that even slightly touches GoW in terms of textures and detail. Resistance looks like a game which started life on PS2 to me, really unimpressed and feels like a major step back from GoW. But PDZ looked crap and that was a 360 launch title so I'm expecting much better very soon.
GTHD is definitely over-rated graphics-wise IMO - has failed to impress outside of the car selection screen where the car models are indeed
Blast Factor sucks. People who like this game obviously havent played through Mutant Storm or Geometry Wars.
Controller is

I had to change the controls on motorstorm because my finger kept slipping off the CONVEX trigger. WTF! Convex?! Seriously Sony what the hell were you thinking of. I'll get RSI using those. So it's back to using the X button or right thumbstick for acceleration. Which IMO is a step back from the Dreamcast-born 360 trigger combo.
So, overall, some good, some bad. I do feel some serious potential from the PS3 though. It's a cliche, but it's true. It feels like a machine made with the future in mind. The graphics difference is non-existant at this stage, GoW looks amazing on 360, Motorstorm looks amazing on PS3. It seems that 360 has its strengths in texture quality and up-close detail, while PS3 has its strengths in rendering huge well-lit environments.