When I have a dialog to enter a new record, it acts as a Modal (requiring that I either enter the data or exit the screen using the Submit or Cancel button. Tapping outside the dialog does nothing. That is how it should work.
However, if I go to enter a date, tapping outside the Date dialog exits the screen without entering the date – in other words, it does not act as a Modal dialog, and does not require hitting the Submit or Cancel button. This has caught me a few times because on a handheld, the “submit” button on the dialog is on the top, not on the bottom as on the desktop, and so it is easy to miss the fact that no date is actually entered if you click outside the date dialog to hit the “Submit” button on the dialog below it.
All “pop-up” dialogs should be Modal, requiring tapping a button on the dialog to exit.
