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I've submitted a patch upstream, you can track progress here:
http://thread.gmane.org/gmane.linux.bluez.kernel/18801

To follow up, I've been able to get Bluetooth working.
The key piece of information is that the Bluetooth module is using the Atheros AR3012.

Currently there is one other device, documented in...

I'd like to test the hypothesis that this is, indeed, a firmware-related problem.
When Bluetooth is enabled on Windows and you boot into Linux, does Bluetooth work then?

Unfortunately, it didn't. I get the same error (Bluetooth: Error in firmware loading err = -110,len = 0,size = 4096) that I'm getting with any other firmware.
Perhaps a different approach is needed...

I believe I have a solution - I need the cooperation of a UX21/UX31 who still has Windows installed on their machine. See below for details.

This module may require loading a firmware first....

That worked for me as well (UX31, the touchpad is identified as Sentelic, not elantec).
FWIW, Sentelic's documentation (http://www.mjmwired.net/kernel/Documentation/input/sentelic.txt#506) points to...