How to Enable 4-Finger Gestures on an Early 08 MacBook Pro

MacBook Pro and MacBook Air units purchased in early 2008 have untapped support for the 4 finger gestures touted in the All-New Precision Aluminium Unibody MacBook Pros introduced in October. This feature is now easy to implement if you have 10.5.6 installed, all you need to do is copy over a file.

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