Amazon unveiling long-awaited updates to its Echo, Ring, Fire TV, and Alexa Plus digital assistant at its devices and services event today. Mackenzie Sagalas has more in today's tech check. Hey, Mac. Hey, Mel.So, Amazon is out with a refresh slate of devices, including those new smart speakers and voice activated displays. And what is key here is that they're all being turbocharged with Alexa Plus, its generative AI assistant. Now, today is also very much a test for Amazon's device chief, Panos Pana.The for ...