WINE's rendered completely irrelevant for the tablets, of course, but we've got a good assortment; FPSes and racing games, as mentioned above. Including (sort of in the racing genre) Tuxracer/planetpenguinracer/whatever it's called these days.

But also Chromium B.S.U; though I'm not entirely sure how it'll work with a touchscreen, it should be doable. (It needs to look for some key, rather than the mouse button.) If you haven't played that, then you don't know what you're missing. Not to demean Tyrian, which we already have, but they're different, and you need both.

I'd mainly be interested in Chromium and Q2/3, which are somewhat wanting in impressiveness these days, as they already run on "everything", but are good solid fun (which is what I want from a game).