I had this code to set the viewport so iPhone would hide the URL bar. Just found out that is caused the app to no longer launch after saving to home screen. I see the splash image, then appLoadingIndicator, but nothing after that.
Here is what I had
Changed it to this and all seems well.
autoMaximize: Ext.os.is.iOS && Ext.browser.version.isGreaterThan(3)
I know the API shows reasons why this is set to false but it doesn't say anything about home screen problems. I don't know if this a bug or the API needs home screen added to the reasons why not to set to true. This is Touch 2.0.1.
autoMaximize: !Ext.browser.is.Standalone && Ext.os.is.iOS && Ext.browser.version.isGreaterThan(3)