Lite
SwitchX. It's an app that many Mac users have used, in one form or another, since the days of Mac OS 8.x. LiteSwitchX provides application switching from the keyboard through a command-tab key combo. Enter Panther. Apple's newest version of Mac OS X includes a pop-up application switching window that is just like LiteSwitchX. The only problem, according to an "open memo" to Apple and Steve Jobs that Proteron has published, is that Apple has not offered any attribution, let alone compensation, to Proteron
Check It Out: A Deeper Look: Independent Developer Criticizes Apple For "Assimilating" Third-Party Softw