Here is a Wired article from 2004 that talked about the “new” and popular casual game market.
The news this year:
Games industry revenues will double over the next five years: Study
Video Game Business to Double by 2011, Driven by Online and Mobile Gaming
Study: Women Gamers Outnumber Men in 25-34 Age Group
It’s interesting how much more information we have now. Of course, it really only helps MSN Games, Real Arcade, and the developers who rely on them. It doesn’t say much about what a company like Introversion Software or Positech Games can do.