Lol.. sorry, couldn't resist. I am both surprised, and impressed, that there isn't more chatter in this forum. Maybe most of the users here aren't gamers and that is why. I am a big time gamer. One of my favorite is Bejeweled, and there is a free game that is really good, Jewels or something like that for the Android. I haven't found too many games tho that are really good yet, but I do suspect this is largely due to lack of hardware AND Android 2.0 with multi-touch capabilities. Now that we all know that the Droid and other phones can support multi-touch, it's just a matter of time before better games come out with multi-touch.
I am myself going to be working on some simple games initially, like kid games, such as math quiz tests, match-em games, etc. I've got a few rough ideas for more fun games, but I don't know much about things like good AI, collision detection and so forth that I will need to learn before starting on anything more robust.
By all means, if you got some ideas, throw them out.