cldlr76: There don't seem to be face plates that allow for multiple hdmi outlets, and a lot the receivers seem to need a power supply, so when you're wanting to have a hdmi plug behind a wall hung tv you need to allow for another PowerPoint.
I dont know your intended use or setup but i have a few comments.
why do you need multiple HDMI outlets? if your intending on running extenders then shouldn't all your gear being one place, meaning only a single run to a display?
and again if its a wall hung hung tv, then there is already a power point there for the tv so its not hard to have a double, but if you have a better look at the products the transmitter is the one that has the power, the receiver (TV end) doesn't generally require power so thats actually a non issue. You just require an extra power point where your other devices are that you wish to send round the place.
for me i would have all my devices in one place, have a HDMI matrix switch and then one pair of HDbaseT for each display i wished to run. you can run IR blasters through most extenders, so yea.