Well we solved the touchscreen responsiveness issue when using the AOSP Gingerbread launcher and Go Launcher. The on demand governor doesn't seem to be tuned right in the Rogers kernel source. Using conservative or interactive instead fixes the issue. The on demand governor could also be what's causing some people to experience random reboots. Kernel devs should start setting conservative as default.
Where can one download AOSP Gingerbread launcher?
Thanks.