Vita didn't have much stage time, no, but it was there. It's sad since they could have shown some stuff off when there was more publicity, like there is on stage, but the floor was littered with Vita titles. The PlayStation Blog was streaming live 24/7 for all three days. Something like 8 hours live interviews/demos/trailers a day with reruns during off hours. It was available on NicoNico, the PS Blog website, Ustream, the PS3 XMB, and PlayStation Home (though maybe just the conference for Home/XMB). They did release a bunch of videos covering that time too, a super long live episode of pulse that covered all three days that can be downloaded on PS Store.
I kind of would have liked a 2nd conference for Vita ala 3DS style. I like the 3DS conference somewhat, it showed some games I'd care about like PaperMario and I'm no longer confident that New Super Mario Bros 2 is a terrible game like the first one (just my opinion, I'm a old school mario fan and that was not acceptable, and yes I did beat the game).
Anyway, despite Vita's strength on the floor and lack there of on the stage, Sony does has Gamercon and Tokyo Game Show pretty much all to themselves console wise. At least one of those will have a huge Vita display.
Before the PS3 everyone was nice to me :(
