[kyleslattery]

FWIW, I've had the wrong apps launch on my phone as well. I'll click an icon and something else will come up. So, I'll just assume I fat fingered it and go back to the home screen, but when I press it again, the same thing comes back up. It generally stops doing it after a few tries, but it is pretty annoying.

EDIT (to respond to your edit): I've had instances where opening the browser app opens the text message app, which definitely isn't a normal intent for the browser to use.