.skydrive Domain Information
Cloud file storage and synchronisation framed the .skydrive application in ICANN's 2012 New gTLD Program. It is one of the clearest illustrations of product-name fragility in the round: the service it named was renamed shortly after the application following a trademark dispute, leaving a string permanently bound to a product identity no longer in use.
A second-level domain can be redirected when a product is renamed; an extension cannot. That asymmetry is the central risk of filing at product level rather than corporate level, and this string is the round's most direct example of it. The extension is not currently active in the DNS root zone and is not available for registration by any party.