This a very good Video that explains Beats Audio.
and if we should really pay extra for gadgets that have Beats Audio in them.
Very Nice video
I have seen other videos of this guy and he presents stuff very clearly.
As much as i understand, Good sound production depends on Hardware Chip as well as the software. Beats audio is mostly a software effect, as explained in the video. But there are devices with extremely good hardware chips in the market (eg for mobile phones – wolfson DAC)