I use it. IReef and My Mobile Reef both work with RKE and it's net module.
The trick is establishing the routing from the outside world to your net adapter. If you have a static IP address from your modem and Internet supplier, it's a piece of cake. Sometimes they call it a "persistent IP address." If you don't, and it's likely you don't have this, your address will usually change every time your modem reboots. (DHCP) There are web based services out there that can provide automatic update functions, so then you can log into them and they route you. DYN.com is one if them.