Here’s an interesting way to add value to your mobile application store, free test drives! An overlooked feature of Amazon’s new Android app store provides users with the ability to try both free and paid applications before making their purchase. Being referred to as “Test Drive,” the company is utilizing an Android virtual machine to allow users to preview applications, in the desktop browser, before purchasing on their mobile. While a VM can’t give you the complete experience, it definitely can aid in weeding out those applications that are duds. The online retailer boasts that it has “hundreds of apps to Test Drive,” with more on the way.