Hearing from Unigine Corp this morning, that fixed driver release will arrive in January, which would mean Catalyst 10.1. Unigine Corp though is debating on whether to release Unigine Heaven for Linux earlier than that, just without the tessellation support, which decreases the graphics quality, but still, this tech demo will be amazing considering their OpenGL 3.2 support and other improvements made to the engine after their last non-tessellated Unigine Tropics and Sanctuary demos last year.
Besides that, for the tessellation functionality you will need DirectX 11 grade hardware (such as AMD's Radeon HD 5000 "Evergreen" series GPUs, like the Radeon HD 5750 and Radeon HD 5770) or NVIDIA's GeForce GT 300 "Fermi" series once released. This hardware isn't exactly widespread at the moment, so most Linux users already will be limited to running the non-tessellated version of Unigine Heaven.
This setback though means that a benchmarking test profile for Unigine Heaven will not ship with Phoronix Test Suite 2.2 when released next week. If Unigine Heaven is released this year still, a point release will be released for Phoronix Test Suite 2.2 carrying this unigine-heaven test profile otherwise it will be found in Phoronix Test Suite 2.4 "Lenvik" next quarter.