10.7: Enable AirDrop on Macs without supported wireless hardware – Mac OS X Hints

AirDrop is a handy way to share files between Macs. Unfortunately, it is only supported on newer models which have the hardware necessary to support a certain type of point-to-point WiFi connection. There is, however, a hidden setting to enable AirDrop on older Macs. Just type:

via 10.7: Enable AirDrop on Macs without supported wireless hardware – Mac OS X Hints.