Angry birds would be a dream come true on this thing, background or no. Unfortunately I don't believe your advice would work for me, as I moved my file system ONTO the SD card, which for whatever reason made the internal 2 gigs of storage simply disappear. With the SD card unmounted I can't even download the APK and put it on my system, and the Amazon Appstore won't even try to install it w/o an SD card installed. Thanks for the heads up on it working for a standard install, though.
I'd have to assume the problems with Flash, SetCPU, and pretty much any of the other headaches we're running into have to do with this Marvel CPU. Googling it shows it simply wasn't used in ANYTHING else. These apps just don't know what to do with it.