Joe is an app developer and is looking to create an app for AR. Since Joe already has a parking app he's developed, Rich thinks he should elaborate on that and use the phone's camera to decipher parking signs. A user could simply point his or her camera at the sign, and the app could return a big check mark or red 'x' on if it's ok to park there at that time. The issue will be gathering the information for the backend. But if he can make submitting data easy and fun, and it works, then he'll have a winner.