While I really wish they’d use ISO8601 format instead, the licensing section for the “Simple Sharing Extensions” is a nice read 🙂 I point this out mainly because the topic of MS using CC licenses came up in a conversation this week, so it’s on my mind.
6 Licensing Information
Microsoft’s copyrights in this specification are licensed under the Creative Commons Attribution-ShareAlike License (version 2.5). To view a copy of this license, please visit http://creativecommons.org/licenses/by-sa/2.5/. As to software implementations, Microsoft is not aware of any patent claims it owns or controls that would be necessarily infringed by a software implementation that conforms to the specification’s extensions. If Microsoft later becomes aware of any such necessary patent claims, Microsoft also agrees to offer a royalty-free patent license on reasonable and non-discriminatory terms and conditions to any such patent claims for the purpose of publishing and consuming the extensions set out in the specification.