Both Major Nelson in his blog and Frankie in the HBO forum have confirmed that despite what you may have heard, the reset of game statistics for Halo 2 will not affect your friends list. Many of you may have been receiving-- or even sending-- voice and text messages to your friends with instructions not to delete them, in order to preserve your lists post-reset. It isn't necessary. Don't send any more of those messages, and don't worry about keeping the ones you have received. The friends lists are not being reset.