Good news everyone!
The Windows X2Go Client builds, which are currently only 32-bit, will soon be faster: http://permalink.gmane.org/gmane.os.cygwin/146737
I will switch them from the regualr libjpeg packages to libjpeg-turbo packages.
This will only apply to upcoming nightly builds, and 4.0.2.1 (Unless a major issue arises. I doubt one will.)
I will announce once the nightly builds are switched over. And this will be announced in the 4.0.2.1 release notes.
-Mike#2