Once installed iShow X appears as a menu item in the menu bar for easy usability.
DesktopUtility does the exact same thing for free, but in addition to 'Hide/Unhide Invisible Files,’ it throws in the ‘Hide User Library’ and ‘Force Empty Trash’ commands to its menubar item's menu. That last one is at least as useful as hiding/showing invisible files.http://www.macupdate.com/app/mac/38299/desktoputility
Install takes a few min for me due to that Apple Quarantine alert. Once installed, works well with Lion 10.7.4.
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