Just finished playing the demo. Pretty fun.
Won't post any screenies since I only own a X800. Played it at 1280x1024 with everything on Low and the fps stayed at playable levels throughout the level. I'll experiment with advanced graphics settings later on. Good luck to you all with killer rigs.
Played on Normal difficulty.
AI is very smart. I will say a few times I would use the cloak on the nanosuit and I felt like I was cheating as I could walk right up to the enemies face and he wouldn't see me.
If you don't use the cloak and only use the other suit modes, it makes it much more fun as the enemy will actually shoot at you that way.
Stealth vs Rambo? I'd say go rambo for fun. It is almost too easy to bypass things with stealth.
I flanked a group of maybe 7 koreans, then popped each one in the back of the head with a silenced gun with one bullet. Was way to easy.
Breakable trees is cool, but a little over-hyped in my opinion. It's cool when one of the boats is shooting at you from the water and they hit a tree next to you and it falls.
Map layout is pretty cool as it feels like you are going from one end of the island to the other.
Sounds are good. Grenade sounds are fantastic. Turn up the subwoofer.
Overall, it was very fun. I think the game will tell an interesting story.
The demo has been released publicly now at these places:
FileFront
Worthplaying
Gamershell
3D Downloads
ActionTrip
Fragland
GGMania
Computer Games.ro
PixelRage
GameSpot
Internode