Steam Greenlight is a new platform feature that enlists the community's help in selecting some of the next games to be released on Steam, allowing developers and publishers to post information and media about their game in an effort to convince Community members that their game should be released on Steam.
Given current voting, at least 10 more game titles are expected to be offered worldwide distribution agreements via Steam.
In addition, Valve hopes to announce Greenlight's first graduating class of Software titles, with at least five Software titles targeted for inclusion in the group to be announced Nov 30th.