portable apps

Now you can carry your favorite computer programs along with all of your bookmarks, settings, email and more with you. Use them on any Windows computer. All without leaving any personal data behind.
Open
PortableApps.com provides a truly open platform that works with any hardware you like (USB flash drive, iPod, portable hard drive, etc). The entire platform is open source built around an open format that any hardware or software provider can use.

Website:
http://portableapps.com/