According to a Develop report, four kits were provided to the indie developer at no charge to allow Rubicon to create an "upgraded" version of its iOS game Great Little War Game for the console.
Rubicon technical director Steven Haggerty said that Sony is "the best" compared to other platform holders when contacting independent developers.
"They've just always been so useful in dealing with us," Haggerty said.
"We've worked with Apple, and you can't get anything out of them. Microsoft rarely responds and I suppose Nintendo are okay, but Sony are always there to help. They always get back to you."
At E3 2011, independent developer Jonathan Mak's game Sound Shapes was prominently displayed for PlayStation Vita, suggesting that he too has received development kits from Sony.
Earlier this year, Sony announced that it will invest $20 million into a Pub Fund that will bring more independent games to PlayStation systems.
A Blockbuster UK listing suggests that PlayStation Vita will launch in Europe from October 28.
Watch PlayStation Vita's E3 reveal trailer below: