ZuneHD.net found earlier this week by other sites is confirmed not to be a Microsoft site. The site is owned by a third party according to the Microsoft Cares twitter account. The following post was sent to Zunited in reply to a post questioning the origin of the site:

@Zunited Zunehd.net is currently to registered to a Mr. Altman and the registrar is Godaddy. Its not in the hands of Microsoft.

Zunited went on to say in their blog post the following:

This is not to say that this domain will remain in control of Mr. Altman. In the future, if not right now, Microsoft may acquire this domain from him. However, at this time Microsoft wishes for us to not confirm or promote the idea that this website is an anyway tied to Microsoft.

[via Zunited]