Gates is the Rockefeller of our times

Interesting article on MSN on Bill Gates and how his foundation is changing philanthropy today.  He will give away more money then Rockefeller did at the beginning of the century.  How will this change education and medicine in the next few years?  For example the Gates foundation is:

"..a foundation whose combined assets will one day exceed the budgets of all but 30 percent of the countries in the world"

Talk about having to learn how to scale :-).  I it will be interesting to see how he takes on this challenge.