Well, my curiosity got the better of me last night, so I wiped my sdcard, copied the 2 files aosp15 and gapp to my card, wiped everything wipeable and flashed. Rebooted and worked flawlessly from the get-go as far as installing it. I've got everything reinstalled like I had in Raptor, and thus far everything seems to be working with a very few exceptions.
I've got the same issues as everyone else - haptic feedback doesn't work,keyboard does not light up, camera, sat gps and headset don't work. I also noticed that there are a couple of ALT-key combos that don't work - ALT-Q, ALT-Z, and ALT-B. Of those, I used ALT-B to generate ".com" but you can type that it, so no biggy.
Other than that, I've got to say this is the best ROM yet for the Ally. I'm running very stable at 806 with absolutely no FCs, KPs or reboots. If you can live with the aforementioned limitations, go ahead and give it a shot. You'll be glad you did.