http://www.giantbomb.com/quick-look-ex-stacking/17-3629/
All you classic Monkey Island fans will probably enjoy this. It seems like Stacked will take the classic adventure formula and add a modern twist to it. It's genius to have multiple ways of solving a puzzle and constantly leaving that puzzle open, to encourage players to try every method possible.

So, um... console only?

I'm not sure. I think that both Costume Quest and Stacking have a good chance of releasing on Steam someday.