DBFront support barcode fields which is great, but barcodes lack the features and error checking that QR codes have. QR codes can also contain more data than a barcode.
Having a QR code field type that can be displayed in a Report would be great. I built an inventory control system using DBFront and currently have a report to print an asset tag with a barcode on it. A QR code would make the inventory control system more resilient and expand its uses. Most mobile phones can now scan QR codes, but do not support scanning barcodes unless using an app designed for it.