Planetside 2 is an PC exclusive
Planetside 2 will be released in Winter, 2012.
Free to Play Weekly - 2011 SWTOR PlanetSide 2 and More 1-59 was released on: USA: 8 August 2012
Planetside 2 or Aliance of Valiant Arms, both pretty good in my opinion.
PlanetSide 2 War Correspondent - 2013 was released on: USA: 28 February 2013
PlanetSide 2 War Correspondent - 2013 1-2 was released on: USA: 8 March 2013
PlanetSide 2 Command Center - 2012 was released on: USA: 10 July 2012 (internet)
PlanetSide 2 Command Center - 2012 1-2 was released on: USA: 6 August 2012 (internet)
Planetside 2
PlanetSide happened in 2003.
Some popular free games for PC are Team Fortress 2, Planetside 2, Battlefield 1942, America's Army 3, and Hawken. These games are free to download online.
Planetside 2 will be released 'on or before' 31 December 2012 this info is available on twitter, planetside universe, Facebook , etc since beta's already started and the NDA has been lifted, you can enjoy live streams on twitchTV if your not in beta yet