The Google Play application has never been much of an app that people want to spend time in. Fortunately, Google has updated that application with an all-new design that makes for a much better user experience when trying to find applications, music, TV shows, books and more. Google says that the update has slowly begun rolling out today, and that it can take up to two weeks for everyone to have it. If you don’t want to wait, you can download and sideload the APK file by downloading it from here (MediaFire link). The app itself is compatible with Android phones and tablets running at least Android 2.2.
Source: Google Android Official Blog