i think the growth rate will slow down a bit in places like pakistan, but at the same time the internet infrastrcuture and access devices are getting so cheap there is really no reason why most of the world (or more than two thirds of it, at least) shouldn't get on line within the next five or ten years.
The big thing is that we just don't have any idea what the internet will look like in these countries. Different cultures will breed different types of community, that's for sure.
And the bigger thing is: no one is even thinking about this stuff in this country. It's all twitter this and google that. Talk about twittering while rome burns.