Simputer, the Simple, Inexpensive, Mobile computer, is a handheld computer designed by the Simputer Trust to be manufactured by other companies. The intention was to make an inexpensive computer that could be widely deployed in education in India. The computer has no keyboard to make it easier to adapt to the many languages and writing systems used in India. Unfortunately, the design has mainly gained traction in industrial uses up to this point. There are two manufacturers which currently are producing the design.
Amida launched a new colour model in October 2005.
Here is a BBC article from 2004 when it first came on sale: http://news.bbc.co.uk/1/hi/technology/3578309.stm
See the Wikipedia article here