GamerBytes, Microsoft has submitted the upcoming Xbox and PC Game Room itself to the ESRB for a rating, rather than have each title re-rated by the board. The article claims that Microsoft's upcoming virtual arcade will sport a rating of E10+ -- meaning anything with a rating of Teen and higher will be left out of the Avatar hangout.
Since each game release (regardless of platform or delivery method) must be rated by the ESRB, the process of rating the Game Room itself could save Microsoft time, allow the company to reach its promised goal of "over 1,000 titles," and halt leaks of future titles via the ESRB website. While the current crop of Game Room titles are too retro for the rating decision to matter, other classics like Street Fighter and SmashTV won't make the cut. (Although, both are already available on Xbox.)
While the Game Room's current rating is bundled with the initial crop of 30 titles, it's unclear if the application's rating will ever change to accommodate more recent arcade releases. Joystiq has contacted Microsoft for clarification.