Amazon has unveiled its new app store, an online marketplace for Android-specific applications, named Amazon Appstore. Users are already keeling over with excitement about free paid apps (the first app will be Angry Birds Rio) released daily and a feature called Test Drive, which allows users to try out apps on a fake Android screen in order to see if the app is compatible with the user’s likes and dislikes.

"The Android platform's openness provides a great opportunity to reach new customers," Mikael Hed, CEO of Rovio, the maker of Angry Birds, said in a statement. "We are thrilled to offer the Angry Birds suite of Android games using the easy and trusted shopping experience that Amazon is known for."

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But, Apple is stealing the Amazonian thunder and filed suit in California federal court in order to prevent Amazon from using the Appstore name. Even though Apple has originated the App Store name, executives are not happy with the copy cats over at Amazon. "We've asked Amazon not to copy the APP STORE name because it will confuse and mislead customers," Apple spokeswoman Kristin Huguet told Reuters.

Apple has applied to register the APP STORE trademark in the United States, a bid which Microsoft opposes, according to an article on Reuters. Apple has also asserted a claim of unfair competition, and is seeking to enjoin Amazon from using the APP STORE mark.