You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
Depends on where you live. In Georgia there's a DMV site where you can enter your VIN and driver's license number and it'll bring up vehicle registration info. I haven't received my plate yet but I can see the number there.