I've played quite a bit of the NBA 2K11 demo and posted my impressions, as well as some "Flick Flick" control info, pulled from Mike Wang (Beluba).
"Anyone try the "flick flick" moves yet? They're some of my favorite shots.
Hold LT, flick the Shot Stick and let it return to neutral (like a pumpfake), then flick and hold it again before the pumpfake ends. You get different shots depending on your movement, facing, distance, and direction of your flicks.
If you're having trouble getting your passes picked, Total Control Passing will allow you to move your receivers around wherever you want. Unfortunately, it's disabled by default so you'll have to enable it when you pick up the full version. Personally, I can't play without it.
Too bad you guys can't change the diff. and game style... it changes the experience pretty drastically."