LXer: PortableApps Suite: Portable computing with style
 

Published at LXer:

While the process of creating a portable computing environment (a fancy term for a set of portable applications on a USB stick) is not particularly complicated, it does require some manual work, and the final result may not be as polished as you might like. The new PortableApps Suite from John T. Haller, who also brought us Firefox Portable, Thunderbird Portable, and OpenOffice.org Portable, is designed to solve these problems, making it dead easy to turn your USB stick into a portable application platform and add a couple of useful features for good measure.

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Hm too bad you need wine for it to work in Linux.