As someone who purchased the old Xi Graphics DeXtop CDE for Linux back in the day, I'm glad to see this become available. I too am writing my review from a PowerPC Mac, a G5 in this case running Ubuntu 12.04 and CDE! Very happy to see this!
Doesn't recognize PAM at all on RHEL 6. Authenticates only with local accounts. Not a win for the enterprise community. Had to hack through to get it to compile as well.
I absolutely love this desktop environment! It's my favourite, and I use it every day for almost everything. I still use MATE for some things, but CDE is my main one. Once it's more polished, I'll likely change this to 5 stars. Tip: If you play Minecraft, it runs better in CDE than any other desktop environment.