I agree, this is a very interesting one.
I would like to see versions like this, from other (and likely more affordable!) manufacturers.
Imagine a set of active speakers that could leverage an IP network, and connect directly to an SB3. Now that would be very cool.
Other than power cables for the 3 pieces, it would be completely wireless.
I can only imagine that wireless cards will be adapted for audio soon, as many more people have WLANS at home, and with the proliferation of Slim Devices, Slingbox, Sonos type server solutions, I would imagine the market is there.
Class D amps built into good speakers that wirelessly connect?
Love to see a DIY for that too!