The currently available DS1307 libraries don't work on the new 1.0 IDE. I tried doing a simple search/replace to the new updated commands and got a whole new set of error messages. Apparently it's not just simple changes.. Anyone working on a new library for this very commonly used chip?
Just an update, I found an updated DS1307 library: http://planetstephanie.net/2011/12/01/chronodot-library-update/
Also available here: http://code.google.com/p/ds1307new/downloads/list