Wireless for surround?

How about this, instead of running wires to the back, I buy a pair of bluetooth audio transimitter/receiver to connect to my pre-out and use it to power an amp in the back. Has anyone tried something like that? Are there other solutions?
I tried that with the AudioEngine AW-1:

That might work better... Thanks.. How was the sound?
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Well, the AudioEngine powered minis do interface easily with the AW-1. as would be expected.

There's also the JBL WEM-1.
Never found one that sounded good. To me anyhow.