I am beta testing the new WiFi nFocus from Rigelsys. I have set it up on the Celestron C6. The people at Rigelsys have worked with me to find the right fit for the C6 focuser base and have sent out this one. It installed easily with two screws and I am controlling it via the on-board PC: I use remote access to the PC via Windows RDP.
I use APT (Astro Photography Tool) for my imaging and via ASCOM, the nFocus interfaces well with APT. Upon connecting to the focuser in APT, it calls the installed nFocus software.
For an official announcement from Rigelsys on this new WiFi nFocus product, see this link to CloudyNights.com here.