Wow, very interesting.
I'm surprised there aren't more boutique, audiophile quality mp3 players like this. Attach portable memory, an LCD screen, have the Rockbox community provide the software and you're on to something good. I think there will be lots of these in the future, and the HM-901 will be even better.
As for the hm-801, I'm REALLY REALLY interested. I'm DYING for an mp3 player with low noise for my UE-11's. Before I plonk down my $600, I'm wondering: The biggest issue for me will be on the interactive side:
1. How's the UI? Can you post a video of the player in operation?
2. How complicated will it be to use?
3. How will we transfer tracks to the player? Can we connect it via USB or is a separate card reader required?
4. Is an SDHC card included? Could it be a bonus for people who pre-order?
5. Those buttons look kinda fiddly, is there a hold switch?
6. Does the price include global shipping?
7. Is there some kind of guarantee, I'd hate to pay now and then be plagued by endless delays as the player turns in to vaporware(sorry for being pessimistic but it is $600!)?
I'm sure everyone here is looking forward to hearing more, so keep us updated and goodluck with the manufacturing process!