With two cameras built into the PlayStation Vita, technologies like video chat and facial recognition are almost assumed to be built into the hardware. At the developer-oriented Game Tools & Middleware Forum in Tokyo, Sony showcased Vita's facial recognition software with a rather interesting tech demo:
Much like Avatar Kinect on Xbox 360, the Vita is able to transform a human speaker into a fully animated avatar in real-time. While the tech isn't quite perfect--as evidenced by the irregular blinking of the female avatar--it's a rather impressive feat, especially coming from a handheld device.
The notion of speaking to others as a cartoon character is simultaneously novel and unnerving. Although just a tech demo, it's entirely plausible that Sony will implement this into Vita when it releases, especially as it provides a level of anonymity to video chatting.