Of course Comcast customers can connect to Comcast wifi at home. That’s the point. But Comcast wants Comcast customers to be able to connect to Comcast wifi no matter where they are. To that end, they’re building a massive nationwide network of hotspots for their Xfinity customers… by using their other Xfinity customers as a source. The service has been controversial since Comcast first announced it, and now that controversy has turned into legal trouble. SF Gate reports that two San Francisco-area residents are now suing the broadband behemoth over the way Comcast is turning every home into an Xfinity wifi hotspot.