World of Warcraft's Patch 3.1, currently on the Public Test Realms, has introduced the Gear Management system, a feature that allows players to swap armor, weapons, jewellery and trinkets at the touch of a button.
The Gear Management system is probably the most anticipated feature being tested on the PTRs besides the new Dual Talent spec feature. There are already player-made addons for WoW that manage players' gear but this new system will be integrated into the client, freeing up valuable memory.