Namco Bandai released today the launch trailers of both Shinobido 2 and Touch My Katamari, that form the publisher's initial line-up for the PS Vita (together with Ridge Racer).

Both trailers are brief but sweet, showing quite a bit of gameplay (and the catchy Katamari theme in the case of the Touch my Katamari clip). You can check them both after the cut. 

http://www.youtube.com/embed/dtt4QZgZIu8http://www.youtube.com/embed/3ZFPFQT2MpM