No, the iPhone has a unique unlock feature, so whether in your pocket or the wife's purse, it won't call Kalamazoo and charge you $$$ for the call. You have to slide the little red icon across the touchscreen with your finger to unlock it. You also have to do the same to turn it off, when you hold the power button for about two seconds. It doesn't make calls accidentally or shut off accidentally.
A really nice feature, which saves the battery, is that the iPhone will have a blank screen after the normal timeout when you're talking on the phone, and when you're done talking, it senses when you take it away from your face and offers you many features with a single touch of an icon (one of which is: End Call). It really is an intuitive and fun-to-use phone!!! :thumb: