Ten driver releases within 69 days. That's pretty impressive.
Earlier today I've installed a Radeon HD 6870 into my Ubuntu-powered Linux system and discovered that the HD 6000 series are still officially unsupported on Linux. There isn't even a single Linux driver on AMD's website with support for HD 6000 series. It seems that only Catalyst 11.1 is likely to feature support for HD 6000 series on Linux.
Why does it take three months for AMD to release a Linux driver with support for the HD 6000 series?