Apple on Thursday released a developer preview of Mac OS X Lion, the next incarnation of the Mac operating system. The new version sports a number of features that weren’t showcased when Apple offered a sneak preview of Lion back in October.

Leading the new feature charge is AirDrop, which sounds like a Dropbox alternative. In press materials announcing the developer release, Apple describes AirDrop as “a remarkably simple way to copy files wirelessly from one Mac to another with no setup.”

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