From Windows Home Server BLOG:
Woo-hoo! We did it. Today we are announcing that Windows Home Server has been released to manufacturing (RTM). We have finalized the software and now handing it off to our OEM partners. The evaluation version (with 120 day evaluation period) and the system builder version are also heading into the distribution channels and will be available in the next couple of months. French, German and Spanish versions will be finalized shortly, and OEM products will hit retail shelves this fall.