I launched my first Android app, Fanorona, a traditional board game from Madagascar. So far I've made four sales. At 99¢ each, minus Google's 30%, I've made $2.78. But it was fun. (I also listed it with Archos's AppsLib, but I don't expect to see any money there; they don't pay out until you hit $50.)
That would be nice—and, yes, I can certainly do the network programming involved. The app is even built with an MVCish architecture that would let me just drop in the network player.
http://fanorona.thibault.org/android/