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.
I just put a deposit on a CPO Model S. I first went to my local showroom, met with a (new car) salesperson, and saw a few CPO listings (more than appeared on the Tesla CPO website at the time). After that, the local salesman introduced me via email to a regional CPO specialist.