I have a suggestion for a new product. It would be called the OpenSpot Classic Pro. The suggestion is to bring back the little blue box with all the same features as the current OpenSpot 4 Pro but in the form of a little blue box that includes an RJ45 network connection, WiFi, the same external antenna capability, PoE, and USB power. Sell it for $350-$400. I would immediately order 2-3 of these. You could also offer an external battery pack that could be used to provide backup power for the Classic and could be used as an extended pack for the OpenSpot4/Pro.
That's my suggestion.