You mean a PC card? I don't think your Joe Six Packs would care.
Well, with less than 450,000 CableCards in circulation TOTAL (that's TVs, TiVos, PC cards, and everything ELSE), Joe Six Pack clearly doesn't care. All of the Draco demos have been done with a modified 211 linked directly to a NIC with a crossover cable, but DirecTV's development platform was a dedicated mini tuner box, a little bigger than a WD external hard drive. Doesn't matter much either way; I'd guess that about half of the people who use WMC have the PC away from the TV anyway, so form factor doesn't matter much.
Can you elaborate on this one?
Imagine a 922 in a cabinet, linked via hardware (USB or Cat5 crossover) to a 722k. You only interact with the 922; browsing the guide, setting timers, or even watching live TV (which I don't do anymore). When you create a timer, instead of blocking it's own tuner, the 922 instructs the 722 to record the program. It effectively doubles the number of tuners available to the 922; 4 OTA and 4 SAT. When you tell the 922 that you want to watch a recording, the 922 requests the stream from the 722k, buffering a la TiVo, and then rendering via the 922's video chip. The 722 also offers the flexibility of having dual HD outputs, having a complete high-def render system with "nothing to do" most of the time, since it only takes it's instructions from the 922 above.
You could extend this system by putting a piece of firmware on a 211 or a 612 in a remote location inside the house; it'd be just like the 211 was requesting a VOD event from the Customer Service/VOD application, but instead of going out to broadband, it gets served from the 722k disk via the 922's catalog in the living room (or head end, or coat closet, whatever). Honestly, I think that a little servlet is all that it'd take to make the 722k/211 interact in this way, and I don't know why Dish doesn't have that working right now. The 622 and 722 don't have the horsepower for it, but I bet the 612 and 722k
do have it.
I've looked at a couple of UPnP server applications for PC, and I've seen shots of things like the Netflix interface on TiVo and Samsung BD-Live players, and it's not that different from the PPV browsing application that my 722 "downloads" from the satellite. It shouldn't be that hard to implement, though handshaking between the two receivers may be hard to certify with the MPAA.
BTW, I have several of my DirecTV DVRs "MRVed" with long HDMI runs too, each supporting two HD sets, they work very well but I can say this, very very few people will bother with the trouble of such installations.
That's just a mirror, and installers do it all the time. Tedious to run, and it gets expensive if you do it via HDMI, but if you don't watch both TVs at the same time, there's nothing keeping it from working.