I know this has been offered many times, but i am ready and willing to test on HD2 with several different versions of android. Currently using 2 different sense and 2 different froyo builds that are all stable. Might be able to test multiple platforms at once since i can run different builds of android on one device.
I am very much interested in trying this on my Droid 2. I currently use LauncherPro and am very happy with it, but your UI looks very interesting and I'd love to try it out and maybe replace my home UI.