Put your cell phone in your pocket. “Lock it” if it has that feature. Now walk around for a little while. If your phone has dialed three people and text messaged two more, then your phone has failed the Cell Phone Pocket Test.
Just for full disclosure, my phone has failed this test miserably.
What the heck? Is this such an odd use case? A jeans pocket? Walking? Come on. Designers out there, get serious! You can’t just design what the product manager tells you to. You have to make sure you maintain professional integrity.
Think about what you are building and how people are really (REALLY) going to use it. If it does the wrong thing at least 1 our of 10 times, you are not designing well. It’s hard to get out there and live the life, walk in the shoes, be the ball; but you have to do it if you want a successful product that people love. Needless to say, I don’t love the OS of my phone.