Sad news indeed: Keith Wilson passed away from a heart attack at age 65. Keith was the developer and the person behind "iFamily for Tiger," a Macintosh genealogy program, and the later version called "iFamily for Leopard."
I was very impressed with iFamily for Tiger when I wrote a review of it nearly two years ago. (See http://blog.eogn.com/eastmans_online_genealogy/2006/12/ifamily_for_tig_1.html.) As Keith wrote on the program's web site, "iFamily for Tiger is a family tree program with a difference because Apple users think differently."