Okay, this isn't "bad" per se, more "annoying" than anything: There's no easy way to hop between apps, or even pause some of them in mid-game. Even though I, and the rest of PopSci HQ for that matter, could lose hours of my life shooting down alien invaders in Sector 17, if I decide I'd rather, I dunno, race a 3-D speedster, switching apps is kind of a pain. You have to undock the iPhone, find the app you want, launch it, then have to sit through whole "How to use your My3D" song and dance--again! It would be nice if there was a central My3D hub that you can access through the goggles, rather than having to hop in and out to change course. Also, the games are uneven--while Sector 17 and the you-are-the-shark game 360° Sharks are both insanely fun, some of the others are more like glorified tech demos.