Sony recently announced PS Vita TV, a small Vita based device that will plug into your TV and allow you to play PS Vita games using a PS3 controller.
We already knew that PS Vita TV will be able to stream video, but Sony have now confirmed that PS Vita TV will be able to stream PS3 games using Gaikai technology.
Sony are using Gaikai as a means to allow PS4 users to stream PS3 games to that console and adding that functionality to PS Vita TV certainly makes that console a more attractive prospect.
via
PS Vita TV: PS3 Streaming Via Gaikai Confirmed - NowGamer.