Google launched Tablet App Quality Checklist

Google launched Tablet App Quality Checklist to make it easier for you to ensure your app meets the expectations of tablet users.

The checklist includes a number of key focus areas for building apps that are a great experience on tablets, including:
  • Optimizing your layouts for larger screens
  • Taking advantage of extra screen area available on tablets
  • Using Icons and other assets that are designed for tablet screens

Source: http://android-developers.blogspot.com/2012/10/building-quality-tablet-apps.html