Rumor: NGP to have 256MB RAM and named as PSVita?

Some days ago, French website revealed info about 3G-less versoin of NGP, that specs are cut in half... That means 256MB RAM and 128MB VRAM, but there's no official info about NGP-s real specs..
Yesterday, Sony Computer Entertainment and Sony Computer Entertainment Worldwide Studios President, Shuhei Yoshida responds to this rumor on Twitter and answered:

But I feel something wrong! Is that real specs without Cut?  256mb RAM and 128mb VRAM?

After this rumor, today some anonymus people said, that NGP-s real name is - PSVita, I don't know what you think, but I don't like it, NGP is much better :P
Vita - It's from Latin and means Life. Hmm, do you remember what Sony calls NGP's UI? LiveArea....

As mentioned, this name was one before codename NGP, Sony decide to return old name to Next-Gen portable? Let's see official announcements on E3 in 7th of june :)