You definitely know that pressing the End Call button on a Windows Mobile (Standard Edition) Smartphone ends a call 🙂 And, you probably know that pressing and holding the End Call button locks the keyboard (left soft-button and then * unlocks it). But, did you know that a simple press (and then release) of the button when you are not in a phone call moves you from whatever menu or app screen you are currently on back to the Today screen? This works on Pocket PCs with a End Call button too, btw. You can get back to the previous window (if you pressed End Call by accident) by pressing the Back (left arrow) button (this doesn’t work on a Pocket PC Phone Edition, btw).
The End Call button is often bigger and easier to find than the Home button. So, this can be a quicker way to get back to the Today screen to, for example, make a phone call or quickly check for an upcoming appointment.