Yep. Taken from wikipedia: "This edition targets the enterprise segment of the market and will be sold through volume licensing to companies which have a Software Assurance contract with Microsoft. Not available through retail or OEM channels." A VLK may be leaked (well, it will, eventually) but as to how long that'll last before being blacklisted, who knows. Enterprise is the same as the ultimate edition anyway, if I remember correctly. There are also no keys for the N and E editions yet but they are kind of useless anyway, you could just install the normal editions and remove IE and/or WMP after.