First things first what we are going to need.
PS3 with PSN access, no you can't use another Vita/PSTV on current firmware only a PS3 will be able to obtain the game and transfer to your system
PSP Base game I will use Talkman Travel Tokyo as a base game for this guide as it is small and cheap (note PSTV users will have to install the PSP/PS1 whitelist in order to use Talkman Travel Tokyo as it isn't on the official whitelist but see my guide...
How to install TNV-11 Bubble without an exploit game for 1.00-3.52 firmwares
PS3 with PSN access, no you can't use another Vita/PSTV on current firmware only a PS3 will be able to obtain the game and transfer to your system
PSP Base game I will use Talkman Travel Tokyo as a base game for this guide as it is small and cheap (note PSTV users will have to install the PSP/PS1 whitelist in order to use Talkman Travel Tokyo as it isn't on the official whitelist but see my guide...
How to install TNV-11 Bubble without an exploit game for 1.00-3.52 firmwares