The first crop of Apple Watch apps will likely be battery hogs, says a guy that tests iOS apps for a living (AAPL)

On Monday, Apple CEO Tim Cook is expected to announce a whole lot more details about the Apple Watch. The big question is: what's the killer app for it? Answer: There will be a lot of killer apps, because a lot of companies are already quietly working on apps for it, says Matt Johnston an executive for Applause, a Boston-based app-testing company. Applause has not yet been able to test any of these apps because Applause does crowdsourced testing. It puts the app on hundreds or thousands of actu...