If you include routers, ip cameras, entertainment devices etc that use linux, maybe the correct number is billions.

It's still there, right at the foot of the page:

In recognition of the unprejudiced creation of a new open source operating system leading to the largely exploited Linux kernel. The free availability on the Web swiftly caused a chain-reaction leading to further development and fine-tuning worth the equivalent of 73,000 man-years. Today the estimated number of users is 30 million. The achievement of Linus Torvalds has had a great impact on software development and on cultural and ethical issues of networking and openness of the Web.