Boy I'd really like to get more info on this topic from someone who has technical contacts. Seems what you are talking about wold work. If you think about the wiring drawings that have been shown they show 2/3 runs coming from the dish to the XIP node. Now if we think about this a minute the switch is incorporated in the 1000.2 and 1000.4 LNBFs which one would assume are what are being used in those drawings. Extrapolate that out to a current DPP44 setup and you would assume that you would feed 2/3 of the receiver feeds from the 44 to the XIP node. Even in a 2 hopper install that would leave 1 port that should allow attachment of another receiver say 722, which of course would not be able to partake in the Hoper's tuners nor whole house DVR but still would allow for a mixed environment.
Anyone got info to yea or nay if technically this would work?