
"Hey Siri" lets you use your iPhone or iPad hands-free.
As long as it's plugged in and within range of your voice, all you have to do is say the magic word and Siri will wake-up and wait for your question or command. It's great for the iPhone when you're in bed or in the car, or the iPad when you're cooking in the kitchen or wondering around the house. It's voice activation for your voice control!
Full story from the iMore Blog...