What's so great about the Apple MacBook Air that has got the world's geeks in a lather? And why can't you add memory to Apple's ultrathin laptop? These and more of your questions are answered by our experts. Read our Apple MacBook Air review here.

Why no drive, you ask?

There's no room in the Air's case, for one. And then there's Jobs' attitude toward internal optical drives for another. Remember what he did for floppy disks back in the late 1990s.

Why are the prices of the two MacBook Air configurations so far apart? I mean, from £1,199 to £2,028?

You noticed that. We noticed that. Co-workers noticed that. The difference comes from just two changes. The first is a wedge to bump up the processor from 1.6GHz to 1.8GHz, and the second is the cost of swapping the 80GB platter-based hard drive for a 64GB solid-state drive (SSD) that's built from flash memory. The stock 80GB drive spins at 4,200rpm, by the way.

The processor price change is in line with what Apple charges for other CPU upgrades. The MacBook Pro, for instance, prices the change from 2.4GHz to 2.6GHz at $250. As for the disk drive? Well, as Jobs said, the SSD is "pricey". Especially at Apple. Dell, for example, sells a 64GB SSD upgrade to XPS M1330 laptop for a lot less.

Who is the MacBook Air aimed at?

Apple rarely, if ever, pins a particular computer to a particular group; rather, it puts its wares onto shelves and lets buyers do market segmentation for it. But with its lighter weight and price and, frankly, its compromises, it should appeal most to frequent travellers in the air or away from a power outlet for less than five hours, well-heeled students who want the least bulk in their bag, and the Apple faithful who will buy the next shiny thing virtually every time.

Should I buy it?

Hey, that's between you and your bank account, pal. We report; you decide. Besides, since they're not even shipping for two to three weeks, so you've got some time to figure that one out.

Will you be buying the MacBook Air?

See our Laptop Advisor website for expert reviews of today's best laptops, plus read our essential advice to make sure you choose the right specs