1tb? Idiot. 32gb, 64gb and 128gb is a logical reasonable guess. It would continue the evolution seen in the past. Why is that a surprise to you? Even if 1tb was available today, Apple would not release it without doing the 32gb, 64gb and 128gb step first to ensure they maximise revenue. If memory stays at 16, 32 and 64gb then Apple are providing more opportunity for competitors to overtake them.