the 3DS is out of the question as after about 30secs on the thing i felt so sick and my head was banging. but im alright with 3D movies in the cinema? ... odd
I think it has to do with how you hold it and the fact that you don't need to hold the cinema screen. I had the same experience as you the first time, but now since I own the thing I have absolutely no more issues cause I know how to use it. I don't put the 3D on with fighters, and hold the device nice and steady when the 3D is on.
After E3 3DS forever!
Nintendo provided e3 videos in 3D for free download on the 3DS, for us who own one. You won't regret your purchase, as all the games shown look amazing in 3D, minus Luigi's shithouse. Just don't buy it if you expect this kind of 1st party offering every darn year. Expect this, then Zelda, Metroid, Kirby, Smash bros and DK next year or the year after. 3rd party devs are jumping in by the looks of it, as RE looks awesome, and so does MGS (if you haven't played Snake Eater before).