Intrepid NeoGAF users took this news and scoured the Internet for more info, eventually coming acrossyet another ratings classification, this time in Brazil. The translated page reveals that Fight for Fortuneis bound for the PlayStation Vita and that it's a casino/card game.
Sony has yet to make any official announcements, but I'd say that a tweet from company executive Shuhei Yoshida about Fight for Fortune is pretty concrete confirmation of its existence. One Loop's website mentions two upcoming projects, one of which is already complete. Could that be the Vita-bound Uncharted game? We'll have to wait and see.