Phoronix: Multi-Pointer X Support For GTK+

Multi-Pointer X support won't be enabled by default in the forthcoming release of X Server 1.6 even though it landed in the mainline code-base last year. This technology to allow for multiple input devices to be used on Linux simultaneously will not be enabled by default until X Input 2.0 arrives with X Server 1.7 later this year...

http://www.phoronix.com/vr.php?view=NzAwNw