Friends of JetBrains are that they come, not more than 2 days ago that has come 2013 Visual Studio Preview and already have a ReSharper Beta 8 to VS2013. All the details you can find here and the best that has I would like to try the version Command Line to see how it integrates with engines of continuous integration, analysis of code, etc.:
A command-line version of ReSharper
ReSharper 8 goes beyond Visual Studio: we now provide a free standalone tool with hundreds of ReSharper inspections and additionally to duplicate code finder that you can integrate with your CI server or version control system.
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