Well i work for a Developer called Mere Mortals, and about 6 months ago we decided to start self publishing as there wasn't much work around from external publishers due to the economy. So we didn't really have a setup cost as such, the game itself took 2 of us about 6 weeks to make. The great thing about minis is you don't need a publisher and you don't have to go through any concept approval process with Sony either, just sign up and buy a kit.
The game itself is a 3 in a row puzzle game that contains 50 challenges and a high-score Arcade mode. Its a lot of fun and people in the office still play it, there's videos on the Facebook and on the store so you can get a good idea of what its about!
#6353079, By GamesProgrammer Aquattack! minis