Mail to go: Portable Mail and Address Book
Thursday, October 26th, 2006
Carlo Gandolfi has developed a way to run Mail and Address Book on a memstick or USB stick, iPod or external drive.
It works as a shell script which opens the local copy of Mail using preferences stored in the external application bundle. The Portable Address Book works in the same way.
If you have a USB stick big enough, you can also store your Mail folder, com.apple.mail.plist and caches on it.
This means that take your Mail and contacts with you and get working on any Mac that has local copies of Mail and Address Book installed.
And there’s more….
However, Portable Safari, Portable Mail, Portable iCal, Portable Address Book and Portable iChat require a USD .99 donation before you can download them. Others like Portable Adium, Portable AbiWord and more are free. See the details and the scripts that makes it work on osxportableapps Sourceforge page 
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The Free Open Source Mac User Group has made even more applications portable. Their stuff is free.
