BBB revision C

As I would prefer to use the EMMC, the 4GB onboard flash memory on a new revision of BBB (Rev C) is promising.
When the board will be ready?
Are there any other changes?

From the wiki:

“We plan to start shipping the Rev C revision 5-5-2014. We will continue to build and ship the Rev B boards until then.”

Yep. That is where the information lives.