A nice article on cell phones and the part they are playing to close the great tech divide:
The number of mobile subscriptions in the world is expected to pass five billion this year, according to the International Telecommunication Union, an intergovernmental organization. That would mean more human beings today have access to a cellphone than the United Nations says have access to a clean toilet.
And because it reaches so many people, because it is always with you, because it is cheap and sharable and easily repaired, the cellphone has opened a new frontier of global innovation.