Windows 8. Touchscreen. It's not altogether unappealing, but I feel like its main selling points are aimed at the casual user who doesn't own a desktop or laptop already (or just have a work laptop).
I don't particularly care for Windows 8/touchscreens either, but:
Windows 8: Though I have very limited experience with this, it seems like it was born to run on a tablet.
Touchscreen: I think touchscreens in general are inefficient and clumsy, but... pretty much every device these days has a screen as a primary/secondary method in input. I don't see how this sets the Surface apart from any other modern mobile device. Perhaps you mean that the Surface's touchscreen, in particular, isn't very good?
