Default [Q] Reading Rainbow APK

Does anyone have the Reading Rainbow APK for Kindle Fire?

I have managed to get my Motorola Xoom to install Kindle only apps, but have failed at finding the APK for the one APP I want

EDIT
Taught my self something new, here is the file if anyone else wants it
https://www.dropbox.com/s/n65axrr9b0...nbow_1.4.1.apk