bcWebCam - Scan barcodes and QR Codes with your computer web cam
Loyalty Card Keychain - Saves all your loyalty cards on your phone
ZXing - Barcode Scanner for Android
Stocard - All loyalty cards on your smartphone!
Barcode to PC: Wi-Fi scanner - Turn your smartphone into a real barcode scanner
Key Ring Reward Cards - Tired of all the loyalty cards dangling from your keys or stuffed in your wallet?