MacBook Air Disappointment

I was rather surprised to see that the hard disk for the entry-level MacBook Air, while it has a reasonable 80 GB capacity, is a slow-as-a-drain 4200 rpm version. This is a real disappointment for what would otherwise be a reasonably-specified computer. It's a pity the solid-state optional drive adds a thousand dollars to the price. Still, the cool factor will inevitably have the Apple fanboys queuing round the block, so why should Steve Jobs worry?