PSP3D is running an interesting contest where developers of homebrew will be paid to submit an original piece of PSP homebrew. Theoretically, everyone's a winner, with the community voting for their favorites. Every vote that a piece of homebrew gets nets the developer 5 cents. With five votes, you could buy yourself a Little Debbie cake! They're only going to give up to $200, so only the first thousand votes count, but if you're a developer and you really need some spare change, you might want to start coding.
(I bet more people would upgrade their firmware if Sony used the same tactic: give us money for upgrading! Never going to happen, but one can dream, right?)