The MathJax development roadmap calls for implementation of MathML input support - and support for taking advantage of native browser MathML rendering when available - later this winter. Core developer APIs for integrating MathJax with other web applications are present in beta 1, but documentation and examples are planned in the coming months. Additional functionality, particularly for accessibility and for copy and paste, is slated for spring.
Authors and developers are encouraged to download and try out MathJax beta 1. Bug reports are best entered directly in the MathJax bug tracker on SourceForge. Comments, suggestions and feature requests should be posted to the MathJax Open Discussion forum, also hosted at SourceForge.