Anyway, so is PLCBUS the way to go right now?
And where do you buy this hardware, and how much are we talking for these devices???
I'm in the speech recognition industry... I've had a long-standing back-of-mind thought to make speech recognition happen for HA... I have the technical background, but it's a non-trivial bunch of work... Hardly seems worth the effort until the network hardware gets sorted out once and for all (die X10, die!).
Welcome to the thread. Google for PLCBus and you'll get lots of links to go through. If you want to develop speech-recognition for HA, I'd suggest LMCE is the ideal platform for that. You don't concentrate on the HA devices to control, but rather to control LMCE. When you've got LMCE responding to a command, it can then control the device, whether that device is a HA-controlled light, a TV or whatever.
Doing it that way means each time a new device or protocol becomes available, you don't have to change the speech-recognition routines.
As for whether PLCBus is the way to go, the jury is still out. It's looking strong, and I'll probably go with it, but we'd still value your opinion here.
For my 10 cents, I'm probably going to go with a mixture of PLCBus and CBus, but that is based on my current needs, and your needs may vary.