Well that was scary, thought I'd lost my iPhone 6+ for moment there. iOS 9 loaded up fine, shortly after the iTunes restore process started the device went into an endless crash to reboot loop. Endless may be a stretched, but I watched many reboots, finally when reaching close to the of crap moment I was able to catch the device at a point when I could force a hard reset and power it off. Coming back up now on iOS 8.4. Perhaps beta 2 will be more kind to my apps, I guessing iOS 9 wasn't to likeling of something.