Finally great news to hear ! I guess all it took once one big game to announcement (CCP-Games-Introduces-Gunjack-for-Samsung-Gear-VR-and-UE4) to make sure the remaining issues are resolved - hopefully the fixes you make for them all make it into branches available for the rest of us?
The tips and tricks that CCP games use to get something looking that good to run 60FPS on the GearVR devices will be invaluable - hopefully something that can be shared with the UE4 community??