Nintendo is targeting them.
I think I wrote in an earlier post that women in Japan have the most disposable income out of any demographic. It is really quite a cultural phenomenon that involves the freeter/parasite single which are basically women that stay home til' 30 years old, pay no rent to their parents, work part time and spend it all on designer goods and entertainment.
Nintendo's strategy really does target this audience. A similar example in America would be that housewives make an estimated 85% of buying decisions in the household. Appealing to women is a big market.
That is one of the biggest reasons why, this gen, Nintendo really wanted to get on their good side with cute "edu-tainment" games.
I don't know how easy it will be to get numbers on it unfortunately....
And nothing has changed at all in the past 10-15 years. It's the same as always. I think Rol is correct in pointing out that there exists a "good enough, which the PSP has tapped into. I think that if PSP2 were to radically improve graphics to a GC level or higher, it could really be huge. They just need to make sure to have backwards compatibility because PSP has a huge collection of great games.
