It's still working for me. Be aware that there are two different trigger phrases, "Ok, Google," which works when the Google Search app is active and, "Ok, Google Now," which triggers Motorola's Touchless Controls feature. "What's Up," is a function of Touchless Control not Google Now. When the phone is listening, if the background is white you are in the Google Search app, if it's black you're in Touchless Control.
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