I was hoping this piece would get picked up in the planet feed, but it didn't, so I'll bring it here.
There's a site that is eager for science educational games. I know that's of interest to some of the folks who post at BioStar, and some people here are developing games. So I wanted to raise awareness of the opportunity to post your games over there. I asked them specifically if the wanted all levels of games--not just 4th graders--and they said yes.
Here's more detail on the ScienceGamesCenter site: Video Tip of the Week: ScienceGameCenter. They are also interested in science game development as an educational opportunity. And they are eager to have science folks and teachers review the games for guidance that can help users decide on games and features.
(I have no relationship with the ScienceGameCenter project--I just liked the outreach and educational opportunity they are developing.)