Naughty Dog released a patch update to increase the functionality of Uncharted 2: Among Thieves and even out some of the boosters that are too powerful in matchmaking.

Below is a list of what is different:
Added Version number to game menu – should display 1.03 after this update
Added Clan Tags – all players can now add a custom four letter Clan Tag in the Profile Menu (square) to display on-screen before their PSN ID
Load times have been decreased significantly
Added “Rematch” functionality
Adjusted some Boosters for balance
Addressed issue with Player’s Met screen in game menu and XMB displaying incorrectly
Addressed issue with Double Cash not doubling medal cash rewards

Aeirou via blog.us.playstation.com »