This has been talked about all over the internet and raised in a few stack overflow questions.
If you filtering screen sizes in your
AndroidManifest.xml, you will need to add:
<!-- Special case for Nexus 7 --> <screen android:screenSize="large" android:screenDensity="213" />
This enables the Nexus 7 screen for your apps, if you don’t filter your app by screen size; no need to worry, your app will work on all devices by default.