Play Battlefield 3 in 3D
After the latest patch for BF3, it is possible to play Battlefield 3 completely in 3D.
EA released a manual named: How to enable Stereoscopic 3D in Battlefield
Here is the short version:
1. Enable Stereoscopic 3D in your graphics card settings (NVIDIA 3D Vision technology or AMD HD3D)
2. In BF3 go to Main/Options/Video and enable Stereoscopic 3D and adjust Stereoscopic depth
EA recommend to lower your graphics settings, because every frame has to be rendered twice now.