It can also be redeemed on Steam, but you've got to get it at that link first.
Also, Humble Bundle is apparently having an end of summer sale...
Edited By Leisher on 1410875924
“Activism is a way for useless people to feel important, even if the consequences of their activism are counterproductive for those they claim to be helping and damaging to the fabric of society as a whole.” - Dr Thomas Sowell