Only played it on the PS3 so far, will try it on the PC too. It really has it's own unique feel stylistically and looks every bit as good as the screenshots suggested. The environments are suitably detailed conveying the dark, grimy atmosphere of the comic material. The group combat reminds me a bit of Urban Chaos, a little of Oni, but MUCH tighter, easier, incredibly visceral and very satisfying. Stealth take-downs have been well implemented and are necessary as Batman is very prone to swiss cheese impersonations in a matter of seconds.
All of Batman's movement is brilliantly captured and feels "right", adn oh that cape! He has the manoeuvrability of a ninja coupled with the stopping power of an artic lorry. Taking a goon out from above, leaving the sod hanging by his feet before swinging across the room to observe is executed fluidly with no complications. Observing his rightfully nervous mate (detective vision shows peoples BPM) stumble up to his friend while The Joker (Mark Hamhill) cackles away in a suitably omnipresent and creepy manner teasing the poor guy, "he's only a man, like you, in a bat suit!". The poor dude is put out of his misery when Batman silently glides across the room like a human stealth bomber, planting both boots into his face, a sickening crunch as his head cracks off a steaming pipe.
The demo doesn't really show off any of the puzzle elements of the game, and it's a bit short, however......I'd recommend playing it. The is very possibly "the" Batman game some of us have been waiting for.

Comments
The stealth "area" is my favourite section of the demo. You are given a 3D puzzle basically involving a multi-stored, but small area to eliminate 5 goons as you see fit. Charging in fists flailing gets you killed pretty sharpish, so planning and patience is the key. Silent take downs by sneaking up behind foes is easily the most effective method as it doesn’t alert the others. However, you're Batman! You can hang on the side of a walkway, grab a dude as he passes and drop him over the side, causing screams and shouting a plenty. You instantly nip up into the rafters and watch the others mill about trying to work out what happened. Detective vision will show that they're all "nervous" at this stage, and will group together for security.
The remaining dudes will be cracked by this stage and start running around like headless idiots shooting at the shadows and generally making it easy for you to pick them off at your leisure. It is truly excellent fun. Empowering, satisfying and most importantly, makes you feel like the Batman. Why are you still reading this?!? GO AND PLAY IT, NOW!
I'm going to buy the game for sure!
Also, I don't know if you heard but Eidos is working on Thief 4. I can't wait.
"Your weapons are deadly, your I.Q. is lethal."
Yes, I was one of the guys that liked to play on Expert difficultly and ghost missons.
Thief 4 and Deus Ex 2 both so far, very "meh". But I might be wrong! Time will tell.
BloodMist