David Pogue provided this link to a very extensive compatibility chart for Snow Leopard and various applications. I don't know how recently this site appeared, but it's very interesting.
I couldn't find much of anything on that wikidot page.
FWIW, one of the better SL compatibility "charts" i've run into is over at >MacInTouch<
"Regardless of how Apple corporate wants to portray its products,  the Mac isn't a machine for the masses any more than red wine is  the preferred beverage at baseball games.  :  So who cares about ubiquity anyway?" --D. Story
