[tomjen]

Except that the primary users of FB are twenty somethings who generally aren't that willing to spend money on stuff online.

Besides the biggest customer of any micro-payment system is going to be the newspapers (that may or may not work for them, but they will try it), but how many old people are on facebook?

[edmccaffrey]

You mean the primary users of Facebook are the demographic buying content online through Xbox Live and phone app stores?

You don't need to be "on Facebook" to use their hypothetical micropayment system. Non-members can be shown a simplified sign-up page, like they would see if another company became the de-facto micropayment processor.

[Mazy]

Facebook has over 200 million users. It's more than just "twenty somethings".

[nostrademons]

I was friended recently by someone I met on a trip to China. He is pushing 75 years old. Definitely not just twenty-somethings.

[bkbleikamp]

Their fastest growing demographic is women in the mid 30s, last I heard.