I went down to Best Buy the other day and they had a demo 3DS set up.
Franky, I wasn't blown away. I have perfectly standard 20/20 vision but I could not for the life of me get the 3D to focus. The game they had was some flight simulator, I suspect they eschewed gameplay to show off the 3D capabilities. I'm also not seeing any must-buys among the launch titles - the predecessor at least had a port of Super Mario 64 , which I hadn't played the original of.
Graphics were beautiful though, even sans the extra dimension.