Techcrunch:

Jeff Williams, Apple’s senior vice president of operations, said that there are over 4,000 apps now available for Apple Watch, a number we’ve previously heard. Williams also discussed the upcoming native SDK for the Apple Watch. Williams spoke in an interview today at the Code conference in Rancho Palos Verdes, Calif.

“A week from Monday at our developer conference we’ll release a preview so that developers will be able to write code natively and have access to sensors, and we’re really excited about that.”

When asked by TechCrunch about the possibility of future Apple Watches giving more transparency to overall health, Williams declined to say anything specific but did acknowledge that Apple was considering adding more sensors.

In three to six months, things are going to start getting even more interesting with the Apple Watch.