Stupidest thing I've ever seen. The logic for it as described by the maker is that it allows for carry without having to disturb people who are concerned when they see a gun. The example I heard is that little Johnny sees a poorly concealed gun and says to his mom - look mom, that man has a gun. That won't happen with this cell phone looking gun. Seriously?
First, concealed should be concealed. Second, how crazy has this world become when the sight of a gun on a person is some big deal. Third, tell little Johnny about the facts of life - most people with guns as law abiding citizens and use the situation as a learning experience.
Lastly - the last thing I want is for law enforcement to have to wonder if a phone is a gun or to be fooled by some a-hole using this thing and doing harm to a LEO.