Are we ever going to see a MacBook Air with a magazine-quality Retina-grade display? I’m sure it’s coming but Apple seems to feel little pressure to deliver such a beast. It’s going to suck down a lot more battery power than what’s in there now and Apple appreciates that next to the Air’s insubstantially slim design; the centerpiece of the experience is its amazing battery life. The 13-inch Air can outrun even an iPad. Apple isn’t going to dent that superlative feature unless it’s under duress from an alien invasion.