I find myself frequently having to make a phone call in the dark (like in my car at night) on my 7290, and I've gotten into the habit of pressing the phone button because the backlight key is hard to find in the dark. The problem is, the phone button takes you into the phone app and puts the cursor in the call list, so you have to scroll up to the dialing area in order to dial numbers. Turns out that the space key, which also opens the phone app, puts the cursor right into the dialing area.