BeefJack writes: "The title that Geoff Keighley teased about being revealed on GameTrailers earlier this week has been revealed to be Lucidity, and it will be coming to the PC and XBLA later this month.
Lucidity is a puzzle/platform hybrid with the main character being a girl called Sophie who you must guide from A to B. The mechanism of the game appears to owe a great deal to lemmings, as you do not control Sophie but instead have to put structures in her path to enable her to reach her destination."