Apple Watch: A billboard for ads on the wrist?

Questions abound over how Apple’s Watch will function when it’s released later this year. But here’s one feature: It will be able to serve ads, based on the location of wearers and their purchases.At least, that’s the vision laid out by TapSense, a mobile advertising exchange that has launched what it calls the first programmatic ad platform for the Apple Watch. The platform, the company says, provides a number of tools to let developers and brands place ads on the unit that can be ta