When it first comes out and you install it via say wireless D* will not provide support for it because it won't be an approved connection as they would call it.
Thats a given. Wireless with audio is barely good enough in certain areas of my home/yard.
Am I the only one that finds it just weired that a TV signal would be sent over CAT5?
Oh I know it will work... but its just outside the norm for me, and probably others. When I think of STB's I think of Coax, I guess cuz I'm used to it. No bigge just different.
At full 19.2 MBPS a switch (not a hub, but a switch - a hub shares the routing between all ports, a switch pipes it to a specific location - in simple terms) could support 5 links to 100mbps, but it'll be more like 15mbps. If you have giganet, then the possibilities are limited to the speed of the ethernet adapter.
regarding wireless...
from what I've read I see 2 things that could cause problems here.
1) 802.11n is still being debated and no IEEE specs have been agreed upon, therefore I don't see how as a manf. you can plan for this technology.
2) I am curious about the speed and bandwidth of 802.11n. One possible spec has speeds near 100Mb's and the competing 315Mb's. I don't think that 100Mb's, and I'm not sure about 315Mb's, will allow enough bandwidth to "broadcast" HD.
Broadcast HD is 19.2 mbps... The issue is overcoming security and walls within the home that would cause wireless interference. Most systems would probably be a combination of both. Wired where possible, wireless where possible.