I was able to install SXCE b104 on a Sun Blade 1000. It seems to work although it is kind of buggy. On a Sun Blade 2000 however, the install failed completely. The machine would reboot randomly during the installation and if you were able to complete the install by chance the workstation would not reboot. I had to back to Sol 10 Oct/08. If you ask me Sun's record on supporting its own sparc hardware on opensolaris is dismal. I have a number of sparc machines that would make nice workstations if only a more modern OS (like opensolaris) were available for them.
Juan -- This message posted from opensolaris.org
