Another day, another F/OSS schism. In the name of the wee-man people. STOP creating new problems. STOP forking. Pick ONE thing and BLOODY WELL FIX IT!
The only exception would be where something is so old, so broken, so out of step with the modern era that there is no other choice (e.g. X Server).
I totally get that the default Gnome (or KDE, or...) interface may not be optimal for touch, but are these desktops really so rigid that they cannot be themed/skinned/configured to work with touch? Do we really need another one?
Why can't they fix the BASIC things? Like having consistency between left and right click on application icons in Gnome? It's should be "Left is *always* program menu, right is *always* icon management. There will be no discussion, no variance. The Desktop Overlords have spoken." It's little things like this that make people hanker for a Mac or slowly drive them insane.