What changed between versions of the Amazon Appstore? The original version of the Amazon Appstore was v1.07002, and it appears to still be working fine, so the upgrade to the new version (v1.07003) is apparently not mandatory (unsuprising, given the tiny version increment).  What is the difference between these two versions?  Is there a release log anywhere?

Edit: I believe it's at v1.11 now, feel free to generalize this question.
After you posted this I got curious too but I couldn't find a change log.  I emailed Amazon support and asked what changed and where I could find a release log and here's what they said:


  Unfortunately we do not have a change
  log detailing the changes made between
  versions of the Amazon Appstore app.
  
  I will forward your feedback on to the
  Appstore team who will take them into
  consideration. Customer feedback like
  yours is what allows us to continue to
  improve and provide a quality product
  and experience.
  
  If you have any other feedback please
  let us know via email or at
  1-866-749-7771
  
  Thanks for contacting Amazon.


This is actually the most direct answer I've gotten.  I've emailed them a couple other questions and got boilerplate responses that looked like they were for different questions.