Hifiman HE500Out in a few weeks apparently from the time of writing, for those wanting a slightly more flexible or mobile setup Hifiman have made a more efficient orthdynamic headphone in their HE range called the HE500 (formerly the HE6P).
This is the pic when it was originally supposed to be the HE6p

Retailing at around $900 from Head Direct this is being pushed as a less power hungry version of the HE6. Some initial reviews on the prototype mentioned that volume could be achieved on a lowly iphone 4 out of the headphone jack but better results on higher amp'ed DAP's such as the HM801 (maybe even the HM602 looking at these pics).
Hmm... hm602 and he6p madness!!

Not much to report just yet on specs or reviews but will shout back if I spot any - Sherwin? You want a portable Hifiman to go with that hm602? This could be it!