At least with the Antenna Issue you can use a case. The Proximity Sensor has no temporary fix. And no, the Reset All Settings does not fix the problem. For the people that think they have an iphone without this problem listen up. Sure if your holding the phone up to your ear it will not happen. Try holding it with your shoulder while doing a couple things and get back to me.
This issue better have a fix soon or I'm returning the phone.