In many ways the story of the MacBook Air is the story of a series of compromises, all made in order to fit an entire Mac in a 1.3kg package that's 4mm thick at its thinnest point.
Gesture of support
As is often the case when Apple introduces new MacBook models, the MacBook Air's trackpad offers some functionality that we haven't seen before.
It supports new gestures that go way beyond the two-finger scroll and secondary click.
In a move that will be familiar to iPhone users, the MacBook Air's trackpad understands the same pinch-and-spread finger movement that you use to zoom images and web pages on the iPhone. For example, it allows you to zoom in or out on an image in Preview or iPhoto or indeed, switch between images by swiping your finger to the right.
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