David Dawes has commited my driver SDK patch which enables clean synaptics builds. As it's now UPSTREAM this may mean getting in into FC2 is doable. I've also managed to do the Imake magic to build supporting binaries for synaptics driver. Now just sanity checking and rediffing my patch against the Fedora XFree86 4.3.
I also wrote a quick script which tests the state of the current drivers built against the SDK. My patch to start using $(DRIVERSDKINCLUDEDIR) is sane, but some of the drivers on HEAD will no longer build with the SDK. More attention required here. I don't know if I can make rc3 for 4.4 final for this though due to Real Life(TM)