Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
A feature I would like to see is one that would allow a user to limit the waiting games shown to only time limits desired. (If a person does not like 30 limits or very fast limits they would not be shown.)
I ran across an article about a variant called Knightmate Relay Chess which is exactly what it sounds like, a combination of Knightmate Chess and Knight Relay Chess.
talen314: Combining games would be really cool to do. I don;t think it would be easy to build, but an Extended Chess game where players could combine two or three games would be awesome. Oh, and of course, if it would be legally possible, SuperChess.
Actually I would accept any new game soon. It is really a while ago that a new game was released. How about Dots and Boxes?