What would biannual iPhone updates feature, though?
Imagine if, between the iPhone and the iPhone 3G, between the 3G and the 3GS, and between that and the 4, there'd have been additional revisions.
I think Apple would rather skip a revision and offer a major, "groundbreaking" upgrade than do iterative minor improvements.
(OTOH, I can't wait to get my hands on a new iPhone.
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