Blinux is a documentation and development project aimed to made Linux
accessible for blind people. I don't think you can buy blinux, as it is not
a concrete product, but some enhancements to the original Linux operating
environment. The only way to get Blinux is to get Linux and install later
on your Linux system the free blinux components.
If you want to know these blinux products visit the Blinux project home page:
<http://leb.net/blinux/>
Saludos/Regards
Manuel Costa (Barcelona - Spain)