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Thanks for asking.
Remote Buddy is designed to allow you to control more than one application. With default settings, when you press the Menu button on your Apple Remote, it'll open a menu from which you can control the currently active application (please see the Remote Buddy website for a list of applications supported out of the box) or - by pressing the "left" button and going up one level in the menu's hierarchy - select another application to launch/change to and control.
You can download a free 30 day, unrestricted trial version of Remote Buddy from our website at
http://www.iospirit.com/products/remotebuddy/download/
I highly encourage you to give it a try.
Best regards,
Felix Schwarz