From long time I am working on Project 2007. Before that after when I upgrade from 2003 it was very complicated for me to get used to the new interface. Now my office people are planing to upgrade 2010. I made this thread to find what new enhancement added in the 2010 version. If there are just interface changes then it is not worth to go for this upgrade. But if there are major changes related to collaboration or other stuff then I can try to go for the new version.