It uses the barometer to detect elevation changes. Like walking up stairs indoors without GPS signal.

You can swipe left and right along the bottom (where the little bar is) to switch apps.

At what point does a bump become a track feature like a turn that you have to slow down for or adjust your setup to deal with? The drivers would crash a lot less if we straightened out some of the turns, too.

Love me a good Kevin Cameron article. Thanks for finding it!

Or a long rambling YouTube video.

It’d be cool if this was the return of the iPhone 4 custom back glass.