I just watched the keynote at PyCon2007 for the one laptop per child.
Most of the operating system is written in python, so they can have a "view source" button that lets someone view and modify their operating system on the fly. The system is written in python.
They are shipping 10 million laptops this august.
Some fraction of those kids are going to read the system and figure out how to program, from 6 years old.
Whats going to happen with 1-10% of 100 million kids showing up on the internet with their own software development toolchain.