With the update of the Appery.io Tester on my Android phone today (11/19/2013 - Version 1.3), I found that the apps I had created that used the navigator.app.loadUrl function no longer work on the tester app.
If I build the apk and install it on my phone, the app works as designed. But the app doesn't behave properly with the latest version of the Appery.i Android tester.