Very interesting book review in the Wall Street Journal about the casual-game revolution.
The gist is that the original video games in the 1970s (like Pong) attracted people of all ages.
Then video games got complex and attracted mostly young males.
Then simple, intuitive games (like the Wii) came along and digital games attracted all ages again.
While the bulk of console gamers are still adolescent boys and young men, the Entertainment Software Association estimates that 40% of all gamers are women over the age of 18; and 25% of Americans over the age of 50 play videogames.
How Everybody Got Game | 15 December 2009