Doing some research on this, it looks like you couldn\'t toggle Do Not Disturb mode in iOS 6 or 7. Wondering if you can do it in iOS 8. I can\'t find anything in Apple\'s do
This functionality would be outside of the sandbox that Apple puts each application in. Contact between apps and contact outside of the sandbox is very restricted. One example that Apple lets you get away with is turning on the flashlight, but like AirPlane mode, Do Not Disturb (should be) is restricted. Here is some more information on the the sandbox.