Sony has registered the domain name: vita.scedev.net and the website shows Sony’s current gaming platforms available in the market asbwell as information about the company.
The website also has the following disclaimer announcing that it’s wholly owned by SCE.
“The Developer Network sites are owned and managed by Sony Computer Entertainment Inc and its affiliates.”
If that was not enough, the domain name ngp.scedev.net is also registered by Sony and produces the exact same website that you’ll land on by visiting the earlier domain.
This strongly suggests that Sony are planning to use to name Vita for something, and very possibly as the official name for the NGP.
PS Vita was rumoured to be the official name chosen by Sony for the NGP earlier in the week by various sources.