Sorry, it will be no use for the rest until audio problem is solved and the stable frequency is found and tested. I don't want to be responsible for damaged netbooks because there are still lot of unknowns. Patience, please. The overclocking now works only until restart, then again the jumper needs to be shorted, USB cable plugged in and the correct registers set, it is no easy task without knowledge. I will publish hexedited nboot which can be flashed for permament overclock when audio will work correctly and I am sure it is stable.
Yes there is some sort of speedstep for anyka, but it is more like suspend when all internal PLLs are switched off except some. For real speedstep a wince program is needed. Altrought it is pointless on netbooks with wifi as there is no suspend option for wifi and it eats all the power.
The ADC and DAC is connected to main ASIC(RAM?) clock and the only rule is that audio frequency should be equal or greater than ASIC which I did as didn't touch ASIC and audio dividers. Seems that the specification is not entirely correct.