Originally Posted by earthclaw
Download a psp title that you purchased from the psn store to your ps3.
Once on ps3 the download will have the usual install bubble...asking you to install to a psp. do not use this.. make sure your logged in to your accounts on both ps3 and psvita . now attach the vita cable to usb first....then to psvita....it will show on your ps3 screen that the vita is atatched...on the vita select content manager and select copy content from ps3 to psvita. select applications,then select psp other, now check boxes for each psp game and mini that you want to backup to your psvita. once its all done transfering .(this can take a while) all your games will show up on ps vita(bubbles) click and enjoy.
Ah yes, I know about this already. However not all games work even with this method.
Quite a few games don't work actually, just some off the top of my head that I've tried(there's more though):
PixelJunk Monsters, Fat Princess, Hot Shots Tennis, Brave Story, a whole bunch of Minis.
You're lucky the games you have work, but not all games work. Even with a PS3.