I've preordered a device but still no game yet. If we got Steel Diver in Europe I'd probably pick that up, but as it is the best game is looking like Super Street Fighter IV 3D. Except I have a friend who's a huge Street Fighter nut and me buying that game would make him happy - so that's off the table.
Because I attended Eurogamer 2010 I was given the privelege of going to the 3DS' public debut in the UK in an obscure corner of London one weekend a few weeks ago. It was actually a pretty insane event, especially when this happened:
Two guys, one as Ryu and one as Ken. They had a proper mock Street Fighter battle and it was AWESOME. After that we got led through a room of T-virus infectees by Chris Redfield and Jill Valentine from Resident Evil. It certainly got you pumped.
The device itself is quite impressive - the buttons are tactile and it's got a good weight to it. The blue also looked much nicer than I expected it to. The 3D is really not anything like glasses 3D - that tends to start at the screen and have depth by coming towards you. The 3DS has depth
inside the screen, like a tiny window into something much bigger on the inside. It's the equivalent of looking through the door of the TARDIS. It's often quite a subtle effect, but it always makes things tangibly better.
The games were all good and looked great, but the most interesting thing for me was the Augmented Reality - where you point the system at a card and then things come out of that card in real time, on screen. I played a game where you point and shoot arrows at targets, physically moving around to get the best angle to shoots at. Eventually a giant monster (possibly Bowser? I can't remember) came out of the card and you had to shoot him a lot of times. Incredibly weird but very cool. I hope someone makes good use of it, as the combination of 3D/3D cameras/accelerometers is the closest thing to VR we're likely to get for now.
I had to travel ~6hrs by train in and out of London, but considering that some people have queued that long for ten minutes and I got half an hour, it wasn't such a bad deal. Definitely see the system if you can - it certainly cemented my belief that I want one.