Transcription Aid helps you type text from recordings.
This software is to help type in text from speech recordings. It has several functions proven to help this type of work.
However it is fully manual (aside from auto-completion), so no speech recognition if you are looking for that, but it is a great tool to do the job.
MAML (MathML for XAML) is a framework providing an extension to XAML's object model to allow using MathML declarative syntax directly in XAML. The framework includes controls for rendering and WYSIWYG editing of mathematical notation.