Nest CEO Tony Fadell today published an open letter on the Nest.com blog announcing that effective immediately, the company is going to cease celling its multi-sensor iPhone-connected Nest Protect: Smoke + Carbon Monoxide alarm, which was first introduced in October. According to Fadell, a recent laboratory test revealed that Nest Wave, a feature that enables the device's alarm to be turned off with a gesture, could potentially be used to turn off an alarm unintentionally, thus delaying the activation of the alarm in a real fire. During recent laboratory test
