Several concept images for the rumored "Healthbook" app that may be included with iOS 8 were today published on design site Behance. According to 9to5Mac, the site that shared the original Healthbook rumors, the app mockup “vaguely” resembles the actual app that Apple is working on and thus gives some hints at what such an app might look like. According to sources, the mockups are "vaguely" the right idea. Of course, Apple is likely testing multiple different user-interfaces for this software, and since we are several months out from an official introduction, things can and likely will change (even drastically)…Healthbook, which is a health-related app re