Habitual component-stream eavesdropper Digitimes says that "a small volume of components" that fit the spec for a 15-inch ultra-thin notebook have shipped, and March of 2012 is their estimate for full-scale device shipping.We've talked about Macbook Air DNA being injected into the Pro line, and this is just more evidence of that. The latest update to the notebook line was minor and the design is getting a little long in the tooth.source