Well i have added code to unset pixel doubling on exit and built new 770 and 800 builds. I havent updated setup packages though so you will need to grab them here :
-removed-

Yes, messing with those mouse setting might help stabilize mouse... although the settings you mentioned slow it down too much for me... something you adjust yourself though... i currently have no code at all to support stylus its all configs... keep in mind the zoom script changes sensitivity so if you cycle though the modes you want to update them as well.

Further inquiries regarding 180 rotation can be forwarded to Mr. Fanoush c/o ITT forums (i guess that would invert/reverse dpad and touchscreen?)