Last summer, I rather surprised myself by using my android phone as a level while working on a backyard building project. Also in the summer, I was camping whe

Last summer, I rather surprised myself by using my android phone as a level while working on a backyard building project. Also in the summer, I was camping when my flashlight died en route to the washroom. On the side of the path, I downloaded and installed a flashlight app, and then used it to find my way. I volunteer in an after-school guitar class at my son's school, and use my phone to tune the kids' guitars before class starts. A few weeks ago, a website I maintain went nonresponsive and I used my phone to ssh into the server and restart apache. Just for fun, I installed an app that measures my heart rate using the camera. Just five years ago, if you had suggested these uses for a phone, I would have thought you were nuts.