We're guessing it won't get to a million downloads quite as quick as the Windows 8 consumer preview did, but Microsoft has now made another upcoming operating system available for download in "preview" form: Windows Embedded Standard 8. That OS is at the heart the company's big push into so-called "intelligent systems," which includes everything from digital signage and kiosks to manufacturing systems and medical equipment. As you might expect, the OS is also closely tied to