Something I'd love to see Microsoft do more of is small, simple, solutions to annoying problems that would delight customers.  Here is a perfect example.

Google Gode Prettifier

A simple Javascript and CSS file, the Google Code Prettifier makes syntax highlighting in a web document super easy. It's pretty flexible too. According to the project page, the lexer involved will correctly highlight code written in C, Java, Python, Bash, SQL, HTML, XML, CSS, Javascript, and Makefiles.