A device design which we have seen earlier but without camera design and at that time also it was clear that it may be a high-end design with removable cover for MicroSD card support. Now the camera design with a small hump gives it a huge potential. Yup, possibly we are looking at a 20-21 MP pureview sensor camera attached to a upcoming Lumia device. The removal small cover which hints about MicroSD card support also makes sense, as storage extension is vital for such huge resolution camera phone (808 PureView). But still the overall design looks really sleek and other than the small removable cover is solid unibody. The design also hints about a curved glass display.