The PortableApps Suite has just reached 1.0. This is a useful collection of open source programs for Windows that you can run directly off of a USB flash drive.
PortableApps Suiteâ„¢ is a collection of portable apps including a web browser, email client, office suite, calendar/scheduler, instant messaging client, antivirus, sudoku game, backup utility and integrated menu, all preconfigured to work portably. Just drop it on your portable device and you’re ready to go.
- Link (via Lifehacker)