On this week's all-star episode, we introduce Michael Phipps, founder of the Haiku project, an effort to develop a new open source operating system that's inspired by the BeOS of the 1990s. You'll also hear from Kirk McElhearn, Macworld's "iTunes Guy," who describes some of the promised features of the forthcoming iTunes upgrade and whether they will, so to speak, make the grade. Cutting-edge commentator Daniel Eran Dilger, of Roughly Drafted Magazine and AppleInsider, is on board to refute what he regards as unfounded criticisms of the iPhone 5.