The announcement and more information on the Capsized XBLA release can be seen here.

Currently it’s being developed by Koolhaus Games, published by Indiepub, and will feature new levels, XBLA achievements and leaderboards, and a new focus on local multiplayer.

Capsized was originally designed with XBLA in mind but was released on PC first to make development easier for us. So this is a bit of a dream come for us, thanks to Indiepub and the KoolHaus Games developers