Sony released an official Playstation Vita announcement video which looks at the all new version of the handheld device and its features. For more information take a look at the official documentation.
About the new PlayStation Vita:
The new and slimmer PlayStation®Vita (PS Vita) Wi-Fi model (PCH-2000 series) will be available in the all-in-one Borderlands 2 Limited Edition PlayStation®Vita Bundle. The PlayStation®Vita system brings the greatness of PlayStation to your mobile lifestyle. With Dual Analog Sticks for precision control and critically acclaimed co-op you can shoot and loot through the world of Pandora with your friends.