I haven't seen this reported yet, so I could be the first lucky customer to receive a dead-in-the-box WM100.
I just unpacked my WM100, plugged it into the wall and... nothing. The LED did not light. I tried 3 different outlets. I tried following the instructions anyway to set up the Android app (for the unlikely case of a defective LED, bad solder joint, etc.). I held the SYNC button for 5 seconds and then tapped CONNECT on the app. It attempted the connection for about 60 seconds and, as expected, timed out with the "Connection failed!" dialog. I also tried the hard reset procedure: holding SYNC for 15 seconds. Still no LED and no response to the app.
I'm fighting the urge to take it apart and perform an autopsy. I should probably leave the tampering for Authinx to pursue once they receive my return.