Does anyone know if you can use the watch while using the iPhone? Here is the scenario: I'm on the phone to my wife and she tells me to pick up some milk on the way home. Normally I'd have to remember to set up a reminder when I hang up from the phone or fumble with speakerphone, etc. With Watch can I just now say "Hey Siri, remind me to pick up some milk" while I'm on the phone and it adds a reminder. I suspect there are other situations like this where you might want to perform actions on the watch while using the phone, but I don't think I have seen anywhere if this is possible.