It seems to be one of those things that was a bit like firewire. There are a few people who use it, a few things that it seems useful for but nothing thats going to change the market.
The bigest use of it seems to be in phone handsets/wireless mice&keyboards but do they offer something so significantly different to what is already on the market?
If it could be used for something like wireless speakers that would be great and cut down on a lot of wires, but largely I doubt there are many people who have a genuine need for this technology. Isn't it just technology for technologies sake?