Xfinity does a lot more than just provide internet and cable. They're very integrated into the smart home, as proven by my parent's Xfinity alarm system that led to some cloak and dagger email deletion. However, your Xfinity-powered home is about to get a lot smarter than just letting you know when someone has opened the front door, thanks to integration with Leviton's Decora Zigbee smart light switches, dimmers, and modules.