I just tried Brackets Sprint 31 and 30 on OS X 10.7.5 and all I got was white screens.
Going back to Sprint 26 which is the last one I used still worked though, so now I'm back to that.
Somewhere between 26 and 30 someone messed something up because nothing gets drawn. The cursor does change and I think I managed to highlight some text despite everything being white (because there was a highlight when I got back to 26) so it's not frozen. It just doesn't draw anything.