Just as planned
, Intel has released their quarterly DDX driver update for Linux users and those using X.Org with its KMS-only support.
The xf86-video-intel 2.11 update brings page-flipping support
, DRI2 swap events
, Sandy Bridge GPU support
, performance improvements, and other changes. The new Intel X.Org driver update also has many bug-fixes for X-Video, XvMC, dead code removal, and DRI2.
The xf86-video-intel 2.11.0 driver release announcement can be read on the Intel mailing list