I still run Solaris 10 (update 6) on my home server, but this might be the release that makes me jump to OpenSolaris, at least at home (Oracle 10g wouldn’t run on 2008.05 last time I tried at work). A few things I noticed:

• xterm-color is finally recognized as a valid terminal type
• It supports Apple’s Bonjour autoconf out of the box, which is helpful in dhcp-only environments