Formerly called Quake Zero, the freebie version of id’s Quake announced some time ago has more details. The entire game, which is set to be played completely in-browser, will be sponsored by IGA Worldwide. They’re specialists in getting advertisements into games, and if they have the ability to make a game free, more power to them.
Quake Live will be surprisingly robust, with friends lists and matchmaking features. A Live Arcade edition of Quake Arena is also in the works, though that has no release date yet either since its announcement back in August of ’07. Keep watching www.quakelive.com for the eventual release, or sign up for the beta which is currently the only thing on the site.