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.
In Honda's implementation, lines are drawn on the camera view to indicate the length of your own car. In my opinion, those lines really make this blind spot camera gimmick into a very helpful feature. Can't wait to see what Tesla brings to us. But honestly I don't have a high hope that Tesla will include the lines.