Whether it be case materials and design, native iPhone app development, or video support on the iPod, Apple's not a company to apologize for drastically (and suddenly) changing course. Strategically that's to the company's benefit, since it keeps the competition guessing; for consumers, though, it's a nightmare trying to figure out whether the device you buy today will be dismissed as passé in a heavily-liveblogged Jobs or Schiller press conference the next week. iPhone OS versions
