The ample power of Sony's new portable, Vita, means there's not a huge difference between development for it and its bigger PS3 sibling.
Speaking in a video interview with the PS Blog (below), developer Nihilistic's Rob Heubner said Sony has been seeing PS3 developers to get the most out of Vita.

"We're a PlayStation 3 company. That's our engine, that's out technology. And really, [Sony] were looking for PS3 developers to milk the power out of the Vita, and I think that's definitely the right way to go because it's got a lot of power," said Huebner.

"It's got all the shaders, it's got a lot of CPU, so it's really not that big of a change for us to work on the Vita compared to the PS3," he added.

He would know - Heubner is part of the team developing Resistance: Burning Skies on Vita, the official title of which was revealed at Gamescom this week alongside screenshots and footage of the game looking pretty sweet on the small screen.

Huebner says the aim is to make a "no-compromises experience with all the elements you'd expect from a Resistance game."
http://www.computerandvideogames.com/316177/moving-from-ps3-to-vita-is-not-that-big-a-change-dev/