Very nice...just installed 0.5.6 and it seems to work well. This is definitely a very useful addition to Diablo community.

One question - is there a way to set it so that it can lock/blank with just a press of the power button, no secondary key needed? This would be be very convenient, and was the thing I loved about softpoweroff. (I tried leaving softpoweroff and ASUI running together, and it worked, but it had the side effect that ASUI would be displayed on unlocking unless it had been displayed at lock time. Meaning, that in many cases it would take 2 button pushes to get back to my application at unlock time.)
Or, alternatively, is there a way to set it so that if I unlock it (from softpoweroff) that the ASUI window doesn't automatically come up?

I see that "audio lock button that leaves keys unlocked to control audio volume and maybe playback" has been added to the to-do list. Can't wait...