From what I've read over at the Tivo Community Forum, at the time it will initially be launched until they complete new software (who knows when), Tivo's new extender will actually permanently steal one of the Elite's 4 tuners. Thus, if you hope, as I do, to have multiple extenders in little used rooms knowing that you'll only have 1 or 2 TVs in use at the same time (maybe 3 on a rare, rare occasion), the Tivo solution won't work very well. So now it's a race between Ceton getting the Q and Echo to market and Tivo not just getting their extenders to market, but also finishing new software, which won't be available at the initial launch, to allow active management of the tuners.
I hope Ceton gets this thing out soon. It sounds like the better product as compared to Tivo -- if for no other reason than because it will have 6 tuners versus Tivo's 4 -- and I've been putting off dealing with new wiring for months thinking one of these two products was just around the corner.