Linux Certified sells Linux laptops and offers IT training to individuals and organizations. Its product line ranges from small, affordable units to performance laptops that cost well over $2,000. The company's customer list boasts the likes of Boeing, NASA, the US Army and MIT. But if recent trends are any indication, Linux Certified and similar companies that specialize in selling computers that run Linux are about to see some of the world's largest computer companies warm up to the open source operating system.