The constantly growing app store and new features surfacing every other day have increased the demand for more space. The Apple iPhone 4 comes in 16GB and 32GB versions. However, it is expected that the iPhone 5 will have 16/32/64 GB internal storage. The iPhone 5 is anticipated to have an edge-to-edge 4-inch retina display. A curved glass display screen is also rumored, which may offer more privacy while viewing in public areas.