Hey guys, I have the Asus T100, which has the slightly faster sibling of this Atom cpu in it. 2GB RAM, 32GB eMMC, Win 8.1 32-bit.
I've been sitting here the last hour or so with it hooked up to my monitor via HDMI and running random Mame titles (Mameui 32-bit, v.155), just to see how it goes. Right off the bat, none of these sticks run 64-bit Windows, so you lose that speed boost. Mame runs, and runs most things well (even MK2), but naturally you can forget about the upper-end titles (anything 3D) and games with unoptimized and/or challenging drivers (the newer Cave shooters).
You can also forget about HLSL. It generally cripples run speed, even when I'm just running on the tablet's native res (720p) - so it's particularly bad at 1080: Ms. Pac Man runs at 66% with HLSL on, and jumps up to 1000%+ unthrottled, so you know it's HLSL causing the slowdown. (Edit - by the way, this is with Bloom effects turned OFF. It's even worse with bloom enabled.)
I also seem to be having an issue with random crashes while trying to use the Mameui effects but that may just be me. No VGA, so no SLG either, I believe?
It'll probably fare better with console emulators, and Dolphin, because Dolphin seems to run on any damn thing (... yes that was a joke) but personally I'm spoiled by HLSL for home use (less important on the tablet when I'm on the road) so this isn't going to work for me. YMMV.