How would you compare the Twitter ecosystem to how the Facebook ecosystem is doing lately? Seems that Facebook sign on/identity is doing well. Seems that the Fa

How would you compare the Twitter ecosystem to how the Facebook ecosystem is doing lately? Seems that Facebook sign on/identity is doing well. Seems that the Facebook hosted apps are increasingly less relevant than apps just getting sign on and possibly newsfeed flow? Twitter ecosystem seems pretty much destroyed. Tweeting and Facebook newsfeed seem to be doing fine.