iOS 8 concept brings together all the rumors in one video

Obviously, the video essentially amounts to a rumor roundup combined with a concept render, but it does cover all of the more interesting things we've seen. The big pieces are those that would potentially connect to the iWatch, like the new Healthbook app, which would track various items. It's unclear exactly what would be included beyond the usual heart rate, pedometer, distance, calorie tracking, etc. The video shows options for bloodwork, hydration, and blood pressure, but there have been rumors that those added features wouldn't make the cut, because it would then add required FDA certification for the iWatch. 

The video also shows off what a potential Notification Center redesign could look like, as well as added Siri features with Shazam's help, and of course CarPlay. There have been other iOS 8 rumors, but the ones that made the video are the ones that have been repeated enough to seem reliable. Nothing looks to be a huge change, but this has been shaping up to be a year Apple focuses on hardware more than software.