I have been discussing this with Muzual for a while, occasionally mentioned it on these forums. Well, at long last, here it is!
What is osu! ?
osu! (http://osu.ppy.sh/) is a freeware rhythm game developed and maintained by mostly one person in Australia (peppy, the author of puush, we all use it!) in which the player focuses on acquiring as many points as possible by clearing the circles, sliders and spinners on a beatmap. (the beatmap is the "level", they differ by difficulty, and they are generally made by other players. (don't worry, they have to be moderated and approved before they get ranked!) )
What should we discuss in here?
Whatever you want, really. I made this thread with the sole purpose of discussions. It could be osu related, something such as how did you ace *WHO'S AFRAID OF THE BIG BLACK* (don't worry, that's a really difficult map, and Cookiezi is the best player in the world!), how cool your menu background is, but also about random things, such as how did you dump your girlfriend last night becasue you wanted to play more osu!
to be updated