Like many of you, I have a MBA 13 and an iPad, and often have to decide which device I will take with me when traveling. I can't do a lot of my work tasks on an iPad - I need Mac OS apps, programming tools and a decent keyboard. Similarly, the MBA is sometimes a bit unwieldy to use in a restricted space (on a bus, in bed, standing up etc.). Taking one device or the other involves a compromise, and taking both adds too much weight. Despite Steve Jobs' "Toaster Refrigerator" analogy, I often think a well-executed 2-in-1 (with detachable keyboard) would be a great thing. This would probably need to run Mac OS, but iOS or some hybrid OS might be OK with suitable apps. I really like the format of the recent MS Surface 3: if it were just a little bit lighter, and ran Mac OS, it would be ideal. How likely do you think it is that Apple will produce something similar? Will Mac OS X ever include a "tablet friendly" UI, similar in concept to the MS "modern" interface (but done right)?