Here's the non-emulated games I can think of:
Card games like Solitaire (I saw someone playing a GNOME Solitaire on the Pandora)
X-moto (Stunt bike game, more or less)
Probably some tetris games, Gnometris will probably port fine.
That one guy wanted to port Indestructo-tank, but he hasn't gotten back to us since my prototype of it, and I don't personally like the game.
Whatever I do. (I really want to write a bullet hell kind of game, but I haven't tried)
That one other guy is working on zeq2lite, some kind of fighting game based on DragonBall Z.
And of course Quake I, II, and III have been ported, since they are open-source.
Oh, and AssaultCube, I think, could be ported. Cube 2 / Sauerbraten would be kick-ass, but I don't think anyone's working on it yet.
Edit: "Chan" is an imageboard like 4chan. It's like a forum but with more porn and more users and more idiots.
The built-in Midori web browser should work fine with all chans, as long as they don't use Flash, Java Applets, or YouTube (which uses Flash). Then there would be a slight issue.