Valve has announced that Steam Trading is now out of beta testing and is currently available for Team Fortress 2, Portal 2 and Spiral Knights. The new system allows players to exchange and trade in-game items via the Steam platform and is expected to have more participating titles added over the coming months.
According to the press release: "Your Steam Community profile now has an item Inventory, and you'll be able to view the Inventories of every public profile in the Steam Community."
Read the Steam Trading FAQ for more information.
