Where has been gone the featur Power-play for the mobility radeon HD with FGLRX driver?
because I can't find it anymore since the version 10.7 on ati control center, and because without powerplay there is nothing to do:
Default Adapter - ATI Mobility Radeon HD 2600
                            Core (MHz)    Memory (MHz)
           Current Clocks :    500           400
             Current Peak :    500           400
  Configurable Peak Range : [500-500]     [400-400]
                 GPU load :    0%

and because it is a mobility, there is no fan to cool the graphic card, so the temperature increase until 100C and the computer shut off, and radeon almost burn himself (because the bios didn't pass the test during 1 hours after the extinction)

because I don't think alright to leave support of a feature or technology when it has been decided to develop driver with restricted licence.