Email client: Mozilla Thunderbird, Portable Edition
Instant Messaging: Pidgin Portable
Office suite: OpenOffice.org, Portable Edition
Calendar/Scheduler: Mozilla Sunbird, Portable Edition
and many more other utility
all preconfigured to work without the need to install the program. Just drop it on your portable device and you're ready to go.
All versions of the PortableApps Suite include the integrated
PortableApps Menu (pictured at right) and the PortableApps Backup
utility along with a set of custom icons, an autoplay configuration,
folders and a quick start shortcut.