Yesterday at E3, Sony announced its next generation touch-interface and motion-sensitive portable gaming machine, the PS Vita. This marked a huge turning point for Sony as they have been the subject of a number of serious attacks on the PlayStation Network over the past month. And Sony is calling the PS Vita launch the company’s biggest since PlayStation 3.

The sleek looking PS Vita packs a serious punch with front and rear facing cameras, built in accelerometer, a touchscreen on the front, a touch pad on the back and built in GPS, Wifi, 3G and Bluetooth support.

The new PlayStation Vita will revolve around five key concepts: Revolutionary User Interface, Social Connectivity, Location-based Entertainment, Converging Real and Virtual (augmented) Reality. It will be compatible with the PlayStation Suite and is backwards-compatible with downloadable PSP games and content from Sony’s PlayStation Store.

Boston based Skyhook Wireless’ Core Engine will be powering the location-based entertainment technology that will allow gamers to enjoy location aware games. For example, finding players nearby or even a regional leader board. It also opens the Vita up to thousands of applications like Facebook and Foursquare which incorporate location into their user experiences.

“Sony is making ‘location based gaming’ a cornerstone of their evangelizing to Vita developers.  We can’t wait to see the new types of games that will emerge using Skyhook’s Core Engine,” said Ted Morgan, CEO of Skyhook Wireless.

The PS Vita is available in two models. One for $249, its Wi-Fi-only version, and one for $299, which will have mobile phone support and buyers will have to subscribe to a cellular data plan.