Enable AirDrop Over Ethernet & Unsupported Macs Running OS X 10.7

By Richard Mallion
AirDrop is my favourite feature is Lion.  It allows you to easily send and receive files wirelessly over a network just by dragging and dropping. It’s a great addition to Lion, but it’s not supported on all Macs (some 2008 model MacBook, MacBook Pros, some Mac Pro’s and Mini’s, etc)
You can enable AirDrop with Ethernet and enable AirDrop support on unsupported Macs running OS X 10.7+ by using the following defaults write command in the Terminal:
defaults write com.apple.NetworkBrowser BrowseAllInterfaces 1