Comment by rj...@google.com:"An "Entity" is any object with a well-defined identity and version." Might mention that version is a bit of a misnomer, since it doesn't need to be Comparable. More of a hash tag.
For more information: http://code.google.com/p/google-web-toolkit/wiki/RequestFactoryMovingParts -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
