Amazon raised a few eyebrows this morning with the news that the Amazon Appstore, the second best Android app store in the world, was now open for business in parts of Europe.

Android users in U.K., Germany, France, Italy, and Spain, now have the option of buying from among Amazon’s broad selection of Android apps with the convenience of shopping on Amazon from their Android phones and tablets.

Amazon’s Appstore integrates useful Amazon features like Customer Reviews, personalized recommendations, and 1-Click payments. In order to ensure that customers have the best possible experience with the apps they purchase, apps are Amazon-tested and backed by Amazon’s customer support.

And the Appstore is immensely popular. “Customers in the U.S. have purchased millions of apps, games, in-app items and subscriptions since the store launched last year, and we’ve received great feedback about discovery features like Free App of the Day. We evaluate and test games and apps before making them available in the Appstore so we ensure customers have a great experience with the games and apps they purchase,” said Jim Adkins, Vice President of Amazon Appstore.

To download the app store, simply visit Amazon from your Android device. You should be offered a link to download the install file.