I dont think people really realize what games Activision publishes, as I see a lot of "I dont own any activision games anyway"...
You might want to check this list and remind yourself that while you might not THINK you own activision games, chances are a good chunk of your games you DO own have their stamp on them somewhere..
http://en.wikipedia.org/wiki/List_of_Activision_games
a few notables:
Call of Duty series
Marvel Ultimate Alliance
Just about ANY marvel game, including spiderman
Tony Hawk
They now are part of Blizzard, makers of WOrld of Warcraft
Prototype
Alien vs. Predator
Gun
Guitar Hero
Quake series
Wolfenstein
Tomb Raider
Tenchu
Transformers
James Bond
the Crash Bandicoot series
and my beloved SPyro games (yes I love spyro, go to hell)
Not that I expect anything of this... Sony is pushing their 10 year cycle plan onto game publishers as if they still dictated the "gaming industry". They apparently havent realized that video games are a billion dollar a year industry that has grown beyond the Playstation 2.
Companies are going to go where the most profits are, and could care less about how profitable a console is for a specific company or how badly Sony needs to attract a larger base. They arent going to wait around for the Playstation 3 to become 'profitable' 4 years from now. They want to sell games NOW, and if that means leaving the PS3 behind, then thats exactly what they, and other publishers will do.
Sony has some hard decisions to make...