Update: All of the issues in the post below have now been resolved in Android Studio 0.8.3 onwards, released on 21 July 2014.
We have a workaround to enable paid apps that support Android Wear on the Play Store. In this blog post, we describe the necessary steps to get this working, and information about the problem. If your app is free then no steps are necessary and they will continue to work. We're working to make this easier for you in the future, and we apologize for the inconvenience.