As I've mentioned on this site before, I've previously completed a port for Xorg to run on Android devices.
While I have released all of the modified source on Github (username is tmzt), the instructions to build it are complicated. In addition, Android has progressed far beyond the days of 2.3 and the HVGA devices I targeted.
I'm considering starting over and building a fully native application, targeting Android 4.0 and focusing on tablets. I would also add support for GLES rendering and potentially GLX support.
So I'm asking the HN community if this is something you would use.
If there's interest I can paste a link to the working APK for ARM devices, once I move it to something with more bandwidth than a Dropbox link.