Millennial Media, known more for their sweeping reports of the mobile ad market, has dropped an interesting note via their twitter account. According the the ad company, the Amazon Appstore for Android will launching this month. Their tweet included a link to a blog post geared towards developers interested in the new app storefront.
We await a formal announcement from Amazon, and suspect Google will have little to say about the move other than some boilerplate copy about the openness of Android. It will be interesting to see where the Amazon Appstore fits into the Android equation, nonetheless.