Or... - Unlock phone - Code reader app shortcut is on home screen, one tap to activate - App (Barcode Scanner/ZXing) goes directly to camera view - Wai

Or... - Unlock phone - Code reader app shortcut is on home screen, one tap to activate - App (Barcode Scanner/ZXing) goes directly to camera view - Wait about a second for camera to activate (Nexus One, $200 used off-contract) - Hold the camera still over the code and carry on with your detailed schedule Sorry to hear iOS code readers require two taps just to get to the camera. Sounds like bad UX.