Yup SCEE is now hiring Devs to create PSP Minis. If you are a Dev and have a growing company you can register !here! to make official games or Apps for the PSP or PSP Go!.
Rules: are that you are held reasonably for your games and can't have offensive matirial on your games/ apps.
There is also a catch you have to buy the Dev Kits and tools for €1200.
So if you aren't afraid of loosing money to make official games for SCEE then join and see what you can do!
Here is the full pdf file if you want to read it.