Philippe Bruneau died on August 8, 2011. His daughter, Joanne Bruneau, wrote an obituary on the Centre Mnemo website. (In French.) (Note that the original date of his death as announced was August 7, which his family has now corrected to August 8, hence the discrepancy in some earlier obituaries.)
There is a Facebook tribute page here. (Mostly in French.)
His rhythmical style of playing dance tunes on the melodeon will always be remembered. I'll never forget the first time I heard a recording of Monsieur Bruneau playing a 3/2 brandy -- it still takes my breath away. Please use the comment feature below to post memories of Philippe Bruneau and his music.
(Video from Youtube.)