So Apple is making a smart watch (let’s call it what it is, “wearable” is too clunky and best used for non-screen connected products). It’ll do well enough with early adopters whenever they launch it and regardless of battery life but more importantly it’ll test one important assumption: is the ability to pay with a watch going to get people to wear them again? Fitness and sharing your presence have failed to get the market excited because they are short-term interactions. People go on diets for weeks or exercise for a few months. Paying for things is an everyday recurring action. Maybe Watch will be the payment card killer? If they come to the UK, paying for the Underground with a watch would beat card clash but readers are all on the left, so not an obvious gesture. Maybe that’ll pave the way for NFC Apple Rings. Oh the possibilities.