First Impressions
First impressions of the new SXDE are pretty good.
The upgrade process took around 1 - 2 hours, it fully upgraded to the latest release and the process worked a lot better than the previous versions upgrade system.
I rebooted (after sorting out my grub menu) and it seemed just as stable as the previous release. I'll use it properly soon. It certainly did upgrade the Sun Studio compilers and now NetBean is version 6.0, which is great.
Solaris Express Developer Edition Download
Solaris Express Developer Edition Free DVD
I tried out the free DVD option on the Sun website, I highly recommend it. The free delivery of the SXDE DVD only seemed to take a couple of business days.