To be honest, it doesn't bother me that some games don't support pro scan. I don't even buy the cables as it looks fine to me and doesn't seem worth it. I'd rather revel in my "ignorance" than get so pedantic about something I think is minor to the actual game itself. 
If Nintendo announced tomorrow that BWii or even SSBB wouldn't support wide screen or progressive scan, I'd be irritated as it is lazy, but I would still buy the game. A good game is a good game, regardless of if it doesn't run in pro-scan. Sure its the principle of the thing, but I'd rather have my game and play it too, with or without pro-scan, then boycott it.
By the way, for the list, I read on IGN that Tony Hawk Downhill Jam won't support either pro-scan or wide screen, but the developer said that it might when the game is finished. 
( Edited on 08.02.2007 20:22 by Jacob4000 )