Steam Machines beta testers start receiving hardware,
 

Unless you're part of a select group of beta testers (or happen to be handy with Linux), you're probably reading this in a home without access to a Steam Machine. Wondering what you're missing out on? A handful of Valve's 300 beta testers are happy ...

http://www.engadget.com/2013/12/15/s...=rss_truncated