For the record, I still can't play GTAO. They say they'll push the second patch tomorrow, here's to hoping that's the magic sauce.
I went back and played a bunch of Killzone:Mercenary on the Vita to kill the time while trying to log in... that game is the balls. Terrific online, even if it's only 8 player matches, and the graphics/sound/design is all current-gen level. Really happy how that came out.