The PS Blog has done a walk through on the changes, and this is below after the PS One explanation.
The following PS One Classics will be available for download on 8/28. Sony is working hard to get all PS One Classics playable on the Vita. If you have already purchased any of these classics, then all you have to do is re-download them from the PS Store. You can also transfer them from your PS3 to your Vita via a data connection.
- Arc the Lad
- Cool Boarders 2
- FINAL FANTASY VII
- Hot Shots Golf 2
- Jet Moto
- Syphon Filter
- Tomb Raider
- Twisted Metal 2
- Wild Arms
Video below: