Our website is set up to direct all traffic for www.example.com to example.com with a line in the htaccess file. With google analytics new in page analytics feature we are thinking of removing the line and allowing people to visit www.example.com as well to play with the new features. My question is this. How will this change affect our analytics data.

-will nothing change and we can start using the new feature with our existing data -Are the two domains tracked separately and we will have to start over with www.example .com

Any help would be great, as I can find nothing on googles help site covering this. Let me know if you need further explanation.