Is there any software or third party programs that would have a lock like your cell phone, so you dont end up hitting or make calls by accident when its in your pocket with out turning it off. I wish they had a calculator and more software so that you can do more things especially considering the power and the thing we can do. With the sd expansion card it would be nice to have those little things. It would be nice if they had other feature on the gps considering its very portable.