a laptop for less as 500$?

A laptop for less as 500$?
When will a firm produce a laptop including the following software:
Linux operating system,
Firefox for navigation,
Thunderbird for mailing,
OpenOffice for office automation.

The use of free software will reduce the price of approximately 100$, so the level of 500 $ for low cost latops will be reached. Widening the use of free software gives opportunities of development for small software software firms.