They seem down for me..
Read Oh My Void Monks, my hero academy blog at http://omvm.blogspot.com! Last updated 8 May 2013 - Game Replay tabby_nat(DE) v KevinSpinti(DW)
They are down for myself and the dozen or so IRL friends I know who play.
Mine are down on iOS, not sure about steam.
Successfully scaled back my game count, resuming normal play. :)
I'll be back to helping train new players when school gets out. :)
Down for me as well.