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.
Coverage is why I ordered the TuxMat set. I currently have the Model S mats and they fit fairly well in the 3, with a bit of modification, but the TuxMat has superior coverage and I liked the look more. Just waiting on them to arrive.
I had WeatherTech mats for our S and wouldn't recommend them. The coverage was great for driver's side, passenger side front of the footwell was far too low - leaving the carpet exposed to shoes and whatever was on them.
More importantly, the plastic material was far too hard and slippery underfoot and felt cheap (esp at the price!). My wife in particular hated them, especially when she was in heels.