Hi, lets discuss the new beta tester program on this thread. Beta testers should join the gephi-tests@lists.gephi.org mailing list and fill the questionnaire.
Development versions (Nightly build) can be downloaded here:
* gephi-0.8.2-SNAPSHOT.zip (Windows & Linux)
* gephi-0.8.2-SNAPSHOT.dmg (Mac OS X)
The program will be discussed on the mailing list. Feel free to ask questions there! Also, consult the wiki on how to install the development version of Gephi.