This just in from Winbeta.org.

Just out of the box is an OEM build of our favorite .Net OS, this time it is ADS (Advanced Server or Enterprise server, your choice) build # 3700. Only thing we've done is install it, no reports yet on changes. Although we did notice that RC1 release notes are still included. You'll have to wait a bit longer for another Release Candidate stepping.

Coming Soon to an irc channel near you