Ahhh the losers unite. Thank God, maybe this way they will both drive each other to extinction, and leaner, more nimble players will fill the gaps they have left. Sucks for users that are so ingrained in either one or the other though...
Not saying the scary relentless growth of Google (which I think will own the planet Earth in a hundred years or so) or the enormous monolopistic coffers of Microsoft are the answer, but they certainly are more attractive given the competition. Who knows maybe even something useful will come out of this clusterf*ck.