issue: https://issues.apache.org/jira/browse/CB-4323
I think it's an Apple bug because it appears if you have an iPhone app in an iPad, it thinks device-width and device-height is the dimensions of the iPad, when it is supposed to be iPhone sized. An option is removing the width and height attributes from the app-hello-world template since it doesn't appear to affect the layout on anything if removed (but fixes this alleged Apple bug) - but if it's an Apple bug, I think just a note in the HTML or some other doc will suffice
