Does Arago support a Linux desktop such as Gnome or KDE?

( Disclaimer: Non-Linux Expert - my terminology may be incorrect )

The new BeagleBoard 5.05 SDK release works well with my BeagleBoard-xM including SGX graphics support:

BeagleBoardSDK 05_05_01_00 Product Download Page

I noticed all the SGX graphics demos in the Linux Arago image use a raw frame buffer. Does Arago not support a Linux desktop environment or even an X11 windows manager?

What are the best choices for a Linux desktop that includes BeagleBoard-xM SGX support? Until the latest TI SDK 5.05 release I had not been able to get SGX support working on my BB-xM RevC1

Is BeagleBoardUbuntu a good choice?

Thanks in advance,