We are getting close to OpenSolaris 2010.03, the development repository have been updated to build 132. There are also iso-images available at the usual location.
Don't forget to read the release notes, really.
There are not many new packages this late in the development cycle, but a few got in:
BRCMbnxe Broadcom NetXtreme II 10GbE NIC Driver
CPQary3 HP Smart Array HBA Driver 220.127.116.11
SUNWgnuplot gnuplot - plotting utility
Talks I have given
5 months ago