Sony is expected to announce the PS4 in a public event tomorrow in New York. In the meantime, they have been publishing videos to show the history of the playstation brand. With the PS1, PS2, and PS3 last week, they are completing the hardware series with a short presentation of their portable devices, the PSP and the PSVita.
The video explains the PSP was the first portable device with a true “high end” gaming feeling to it, with a good GPU and high resolution (at the time) screen.
It then explains how the Vita is the result of Sony using the knowledge they acquired with the PSP to create a better portable gaming experience. According to the video, the vita introduced enhanced social network features, interaction with the PS3 (Cross platform play), better hardware (powerful CPU and the OLED screen), and exclusive AAA titles such as Uncharted golden Abyss and Gravity Rush. The video concludes by saying that the PSP and the Vita brought quality console gaming to new audiences.
(thanks to whitey_mcguee for the tip!)