What are you waiting for, hit that system update button on your Vita. What other gaming platform can claim to have 100+ "new" games out for it on a single day? Enjoy the likes of the original Resident Evil, Tomb Raider, Ridge Racer Type 4 and others, assuming you have the card space.
If you don't hear from me in the next few days, its because there's no real news from now until Tokyo Game Show and because I'll be running through Vagrant Story and a few other fasvourites just one more time. Then again, quite a few PSOne games I picked up look like utter stinkers now, so be careful what you choose.
Nuts, you can't download PS One games from your history list, and the store doesn't have a PS One section yet. Anyone tried side-loading? Elsewhere, there is now a Settings option to enable interface control through the Vita's buttons, it is not on by default.
Here's the PSN post with all the games that you still can't play listed. Don't feel too chipper about that 100 games number, the Japanese have over 600 titles headed their way! (Although many of them are probably Pachinko games). Come on Sony, how hard is it to link two updates together? Its not like there are huge numbers of Vita users to swamp your servers.