I use a small Pelican clear box to hold my phone. I painted the inside black everywhere except the cover where the phone shows through. It has a silicone "bed" just the right size for my phone, which protects it from shock, and it's completely waterproof.
Haven't done it yet, but I plan to run a charging cord through the back, and seal up around it with RTV. In my case, the phone is just a phone, I don't use it for navigation, so the battery usually lasts for most rides.
I am on call 7x24, and when the phone rings, I need to answer it if it's one of my technicians, or my boss. So it's important for me to see my screen so I can see who's calling me. It's mounted on a ram mount attached to my front brake lever clamp. Sorry, I don't have any pics handy.