Thanks to the magic of just asking PCD, I was able to get the FCC ID of the Cantenna unit a while back. We all should know the router itself is a Technicolor gateway, but here's the magic ID that gets you the guts from FCC OET: NKR-VWL10
Inside the Cantenna's a Linux-powered router, an LG LTE modem, and a SIM card slot. It talks MoCA back to the Technicolor, which brings back memories of playing with FiOS MoCA. I wonder if you could replace the Technicolor with something else.
And on that note -- I wonder what'd happen if someone tried an unlimited LTE SIM in lieu of the HomeFusion SIM card... or if we can crack the thing and swap in an LTE/EvDO card