Looking at the rubric I'm not sure that 2D games are quite what they're aiming for. Probably more likely that they want a killer app to take on Apple.
These are very expensive net-books. VERY! They could be running W7 or W8 or Linux.
I'm thinking "How rude is my gesture?" You make a gesture on the screen or touch-pad, it detects which territory you're in, and indicates whether you'll be kissed or punched. Feet could be a problem - nobody's come up with foot touch screens yet. Showing the bottoms of your feet is very rude in the Arab world. Instead of the usual covering of grease and kiddie-snot you get on finger touch screens, we could have lovely trails of Athletes' Foot powder!
Think outside the box, everybody!
-- Jim