Not yet. There's still no tablet game that can even hold a candle to the premier console games. I have an iPad 2 and mots of the games are $.99 and good for a few hours. And my tablet doesn't have a 46" screen. That's because you are playing consoles and/or PC games that have been limited in what they demand so that they can be easily run on a PS3 or 360. I don't have a decent PC now but certainly they are much more power than a 360 and an up to date console would allow graphics to be far better.
I'd say graphics sure seem to be getting better at a slower rate than a decade ago, though, and that's due to the ubiquity of consoles and most game developers tailoring to that hardware.
I agree 3D blows, it is crap.