We have multiple customers who wish to use their device's front cam for scanning purposes.
One of them plans to create a Shuttle Bus App that will count the passengers inside the shuttle. Having the option to scan their ID's QR code via the front cam is more convenient than lifting the tablet device and use its back camera to scan their QRs.
The other customer one would like to create a Meeting Room App, it's almost the same with the first scenario (monitor/record the attendance). Since the customer wants to put the tablet on a fixed position in a wall, having the capability to scan using QR Codes via the front cam will be a life-saving feature to them.