I also finally played the Xbox 360 at my local Walmart.
Here is my impressions:
Controller:
This is a huge improvement over the Xbox 360 controller. Buttons were comfortable to press, analog sticks were smooth, the analog shoulder buttons were nice. My only complaint was that the top shoulder buttons were placed in a location that didn't comfortably rest around your fingers. I found myself not even knowing those buttons existed while I played. Obviously I could get used to it but...not that great.
The plastic around the controller did feel cheap. It felt like it was a 3rd party controller and not a first party controller, if that makes sense. I have a feeling that the Wireless controller that is more expensive will be made with better plastic and this wired controller is thrown together as a very cheap alternative.
The Games:
King Kong:
Very buggy demo. I can't even believe Microsoft would even put this in to showcase the 360. It was horrible. I played the demo with the T-Rex battle, and the controls were not responsive, the game slowed down, and I couldn't figure out how to do anything. It was pathetic. I had high hopes for this game, and now I know its going to be the same trashy movie franchise game as usual. Or atleast that is what the demo made it feel like.
Kameo:
This game's graphics were great, but the game and gameplay has easily been one of the most over-rated of all the Xbox games. The game plays like everyother Rare platformer. The best example of what this game feels like is: Grabbed by the Ghoulies. Slow character movement and animation. Non-intuitative controls. Dull boring fighting mechanics. Rare is very over-rated, and the only game I care about from them is Perfect Dark Zero...and the original Perfect Dark, but something tells me the sequel might be bad.
Call Of Duty:
This game was intense, it threw you into a massive battle for your life with no warning or instruction. The graphics looked great in high defination, but besides the shine it really didn't look that much better than this generation. I guess its like seeing Ghostbusters on VHS and then on DVD. It looks shiner and cleaner, but its the same movie and really just as good in either format. Also I think this demo is a horrible demo to show for the Xbox 360, because the demo is very difficult and isn't something you can jump into. It would have been much better to have an early demo of Perfect Dark Zero than this game.
Overall, I felt the potential of the system, but also felt the excitement for the system die.
The truth is, IF you play computer games, then you won't really think you are getting anything more advanced than what we have now. The best thing about the Xbox360 is the very slick controller, that is a perfect evolution of this generation of gaming.