tried the OpenSolaris Live CD + Installer preview release today.

just one cd ~600mb

http://dlc.sun.com/osol/indiana/down...in-preview.iso
http://dlc.sun.com/osol/indiana/down...in-preview.md5

Release notes for the OpenSolaris Developer Preview are available on the
OpenSolaris project web site at:
http://www.opensolaris.org/os/projec.../resources/rn/

-- my info --
no compiler, no disk part.
does not use pkgadd. kvm probing is excellent.
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/Jörgen