Still waiting on engineering. They have to change format process flows so I would rather they didn't rush and make mistakes. 
It's been a few months since this was posted, so can we get an update, please?
I just bought a second DNS-323 and want to put 2 2Tb drives in it. I thought I read a review of this Seagate drive that indicated that it could work with older systems, but if the 1.10 firmware is going to be able to handle it, I will postpone getting drives now.
http://www.storagereview.com/seagate_barracuda_green_2tb_review_st2000dl003
This link indicates that the drive can be used in networked storage applications.
I looked for up-to-date resources here that indicated which drives were OK, but they don't seem to be readily available or, at least, not obvious. The stickied compatible drive list is from 2007! D-Link's tech support indicated all drives were OK now, too.
Is there a web page that describes the 1.10 firmware beta and its new functions?