Document Freedom

"
* I can create documents on the platform of my choice, using the software of my choice.
* I can migrate to another editing environment (application or operating system) without losing high-fidelity access to my existing documents.
* I can send my documents to anyone and know that they can read them without requiring the purchase of new software.
* I can receive documents from anyone and know that I can read them without requiring the purchase of new software.
* I have confidence that the documents I create today can be read and understood, 10, 25 or 50 years from now.
* Programmers can write and distribute software that reads and writes documents without paying royalties to anyone.
* I have confidence that the document format standard is being evolved in a way that guarantees the above rights equally for all users and vendors.
"

http://www.robweir.com/blog/2010/03/document-freedom.html