I would suspect that it works with the Llano gpu only when on battery power and uses the 6750m when plugged in. It sounds like what people are saying is you can reconfigure it to run crossfire instead of switchable graphics.
"The AMD Radeon HD 6775G2 is the combination of a integrated AMD Radeon HD 6620G or 6520G APU processor graphics card and a dedicated entry level AMD Radeon HD 6770M graphics card in CrossFire combination. In addition the laptop has to be equipped with dual channel RAM for CrossFire to work."
I suspect the battery life will plummet if you do that however.
It only works for dx10 and 11 games. still 880 shaders is impressive for any laptop.
There are still driver issues with the dual graphics setup, the 6750m might be faster by itself until the bugs are worked out.
When running on battery power you will no doubt want to run the Llano by itself, but still a quad core with a 400 shader gpu is quite impressive for a laptop running on battery power.
It sure beats the i5 laptops.