My hunch was right
"Hello Kracked Dude,
I am very sorry that you are not seeing the most recent update for the Amazon Music App.
Currently the most recent version of the Amazon Music App (4.0.1) is only available on Android devices running Ice Cream Sandwich (4.0) and above. I have passed along this feedback to the Amazon Music team on your behalf about this issue.
I appreciate the time you took out of your day to write us today. Customer feedback like yours, helps us improve the Amazon Music service!
Thank you for shopping at Amazon and have a wonderful day!
Best regards, Cody M"