Its called Nokia 1100. Its an incredibly popular phone in India.
Its cheap, sturdy, comes with a flashlight that you can operate by clicking one button. Very useful. http://en.wikipedia.org/wiki/Nokia_1100#Features
wow, according to that page, the nokia 1100 is the world best-selling handset. 200 million sold. (cf. 50M razrs, 110M ipods, 115M ps2s)
i'm guessing it's cause of the flashlight. ;)
they've got those tiny, efficient, mega-powerful LED flashlight keychains -- can't be THAT hard to integrate one into a phone.