Not trying to get in internet argument but here is the list of features that iOS 8.0.2 disabled from my perfectly functioning 8.0 running device is pretty systemic and fundamental to the entire purpose of the device.
- No incoming voice calls (this thread)
- Safari app crashes on launch
- Mail app crashes on launch
- Phone screen is black when you launch Phone app to place call, no ability to see keypad
- Calendar icon does not display date
- Bluetooth connectivity extremely flaky with car audio system. USB connectivity not much better.
All worked flawlessly in iOS 8.0 and 7.1.2 prior.
So aside from the phone, the email, the calendar, the web browsing, and the audio features, my iPhone is working flawlessly with iOS 8.0.2. It is a rock solid mobile operating system.
It's a joke that i've had to use Google (Voice, Chrome) and Microsoft (Outlook Web App) apps to address core functionality.