A new feature has been added to the US release of Uncharted: Golden Abyss for the PlayStation Vita called The Black Market. This is a Near application aimed at the item collectors out there as it lets you send out some of the Bounty from your collection as well as send requests to The Black Market for missing pieces. If you happen to run into another Black Market user on the street that owns the Bounty you're missing, you'll get a copy.
Sony says that there's even one rare item you can only get by sending out a request that no one can answer. For that you'll get a carved Fetish to add to your collection. Much like Nintendo's 3DS StreetPass feature, this will have you taking your Vita with you everywhere to gain all the Bounty items you need to earn Trophies.
We'll fill in the details on The Black Market closer to Vita's launch next week.