Not enough of the media attention sucked up by Neil Young's Pono portable music player and music service is about the qualitative improvements the player boasts over other players.

Ayre, the company engineering the Pono, released a white paper illustrating how their digital filters outperform the filters used in "99+% of all modern digital equipment" through, essentially, the elimination of digital pre and post ring. If Ayre's minimum phase digital filters do make it into Pono, Neil's player will have a real, audible leg up on the competition.

Ayre MP White Paper (PDF)
Thanks @Cymbacavum