What about one of those touchscreen games you play at a bar, where they flash two similar pictures, and you have to find the differences. You wouldn't have enough space to show the pictures simultaneously, but it might not be too bad. Then after you use your cocktail recipes panel and knock back a few glasses, you might actually be drunk enough to have fun.

You could also use the keyboard design I've seen floating around to make a "match the tune" sort of game. Have the pronto beep out a tone, then you have to match the tone. When you match it, you progress to 2 notes, the first being the same, 2nd being a new one.

While we're on the topic of new ideas, I read in a post a requested feature in upcoming firmware versions is to be able to toggle a hard button function. Like having your right button "play" on the first press, and "stop" on the next - alternating with every press. Couldn't you just use 2 devices to do this?? You could set up both devices with identical panels except for the hard button, then just use jumps between them. If you alias all the IRs, and use the same images it wouldn't even use up that much more memory, would it?? Just a thought.