Dig this: The European Union is running a demo to investigate the idea of delivering interactive educational materials via SMS and mobile-phone browser. According to a BBCs story:

“With mobile phones you can text in answers and get instant feedback,” said Jo Colley, m-learning project manager at Cambridge Training and Development.

“It can be done privately and can be practised in private too.”
The company has also developed a range of learning materials for use on handheld computers.

One is aimed at young people who are about to move house and has questions with a practical element such as how much paint will be needed to paint a room and how much it will cost.

(Thanks to Techdirt Wireless News for this one!)