Think of these not just as cases for everyday use with your phone (although they could certainly be that), but as adapter parts for when you want to use your phone in a Lego creation. For example, you've built an amazing movie theater. Now you would be able to give it a working screen whenever you show it off to your friends. Or maybe, your highway needs an electronic billboard, your airport an arrivals and departures board.
Ever wanted to see your Lego rail layout from the conductor's point of view, or give your robot the gift of vision? Now it could be a reality. Even homemade Lego films would benefit from a easy camera mount.
Of course many people will just want this as a phone case, which is fine. But it could also do so much more. By selling them with a pack of 1x1 tiles, people would be able to customize their phone case. Extra small parts and even instructions would be included to turn the case into an ear-bud holder or a hybrid wallet.
The Lego Phone Case will change the way we think about our phones and favorite little plastic blocks, opening up new possibilities for every creation. How will you use yours?