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.
Not sure if folks are aware but it looks like you can click on your own referral link to place a new order. This is probably useful for folks that wish to order model X/S who already own Model S/X or may ordering their second Tesla