Android 2.2 and 2.3 does not report screen size reliably. MWF returns "false" rather than returning a bad screen size. It may make sense to return the OS-provided number, but also include a confidence flag indicating that the number should not be treated with much confidence in Android 2.2 or 2.3. Not sure if this might cause reload/redirect/performance issues. But putting it in as a feature request.
Reassigning this to 1.3.XX as it's not a priority for 1.3.00 release.