Google has said many times there is no duplicate content penalty. And Google actually can't read anything inside a frame, so there would be no content to duplic

Google has said many times there is no duplicate content penalty. And Google actually can't read anything inside a frame, so there would be no content to duplicate anyway. Duplicate content is an issue, because you are letting Google decide which page is the most important. It is better to control for yourself which page you feel to be the most important.