Basically anything that does not focus on social networking nonsense.
Needless to say, I'm not a fan of the "share" button on the controller at all.
My gaming time and my socializing time should not interfere with each other. I personally don't think that kind of lifestyle is healthy.
Besides, it's not like posting my "1,000 hours of gameplay" achievement on Facebook is ever going to outshine the endless feed of dumb instagram filtered food pics.
They should have learned from Microsoft's failed attempt at popularizing their Facebook app on Xbox Live, and just completely avoided outside sources of social networking interfering with PSN.
Cross-Platforming would be a huge buying incentive for me due to increased population in less popular multiplayer titles..
Oh, and the Occulus "Rift" peripheral support.