Google on Oracle vs Google:
"Each of the Patents-in-Suit is invalid under 35 U.S.C. § 101 because one or more claims are directed to abstract ideas or other non-statutory subject matter."
Google is asking if the granting of those patents make any sense, possibly questioning several of its own patents at the same time. CUDOS Google! Refusing software patents like this the right thing to do for innovation! More at groklaw.
Google also makes another very cool point by not counter-suing like other players do. The focus is instead entirely on Oracles claims and the obvious weakness of its patents.