Q1 2015, so don't hold your breath just yet.
Doesn't bother me in the slightest - I still hope the X7 will use mSATA.
It will take 2-4 years for M.2 to be widely adopted by the industry, and production to ramp-up, anyway.
2 x 256gb SD card gets you to 512gb (bit less in reality, but you know what I mean)
AFAIK, 1TB is the current mSATA limit. That's why mSATA could potentially be a game-changer (and, at any given capacity 500gb or less, mSATA would be a bit cheaper than 2 x SD cards of equivalent capacity, of course):
mSATA is a no-brainer at this point in time - personally, I suspect that we may see it first in a DAP from A&K. I dislike A&K as a company, but they chase the new features and I anticipate them bringing it to market very, very soon. Maybe in a $1,000,000 gold-plated AK480, but probably in a $5,000 AK480 or similar.
James would be foolish (IMO) to dismiss mSATA as a viable feature on the X7, particularly as it would allow him to distinguish the X7 from much of the current DAP competition in the marketplace.
1TB mSata SSD is over 500 dollars. It will significantly increase DAP's pice and 1TB mSata drains battery power really quickly.
On the other hand, 500GB mSata is about 200 bucks. I think 500GB mSata is the way to go. It's certainly lighter than any HDD. It's small and a lot faster than SD cards and micro SD cards.
Good point, and I didn't know about the difference in current drain with the 1TB, so thanks for letting me know.
But even so, it's only a matter of time before the 1TB capacity is made more efficient and cheaper, and, let's face it, 500gb is pretty sweet for the timebeing
Well for my dream DAP I would want it to be as future proof as possible and that includes options! We all love options! =D
AND for external DACs (see note above)