51Degrees.mobi is now integrated into Sitecore's Mobile Device Detection software. Sitecore is one of the leading CMS platforms based on Microsoft technologies used by 27,000 companies worldwide.
The Mobile Device Detection module has been tested with Sitecore 6.4 (Update 1) and works with .NET Framework version 4.0. Sitecore also offer support for the module. See the Sitecore Mobile Device Detection page for more details.