That looks pretty slick! So you can focus using Wifi? That is really neat. Are you going to be doing some astrophotography with your rig?
Astrophotography is the entire reason I got it. I just used my DSLR on my Meade for the first time a month or so ago. After the second try, I realized that there was just no way I was going to be able to get even reasonable focus doing it by hand. So I started shopping for a motor. There were a couple of after market options, but Rigel Systems was one of the recommended ones and it was less expensive than most of the other recommended ones. In the end, I really liked the personal service, recommendations and advice that Leon provided.
What the picture shows is just the part that mounts on the scope. The hand controller connects via the black cable hanging down the right side. You can see the connector in the bottom right corner. The controller also needs a 12v DC power supply. An AC/DC power cord is included, but I plan to get a Celestron PowerTank and a 12V DC cigarette connection cable.
And yes, it supports connecting to the controller via wifi with a smart phone to control it, but I use the manual controls on the hand unit. That is because I am already using my phone to control my camera. There is also an option to connect via a provided USB cable to a PC/laptop and use software that you can download for free. Someday maybe I'll get sophisticated enough to use a laptop to run everything, but at the moment I am just getting my feet wet.