Store your confidential paper documents such as password lists securely on your iPhone and carry them with you anywhere. Take a photo of the document and it's stored behind a custom PIN code (any length you choose). Add simple drawings and text notes on the photos to mark your one-time passwords as used. Shake phone to undo.
Note: This application uses iPhone's built-in encryption technology to protect your pictures. No warranty is provided, all use is at your own risk.