Tim McCormack has an excellent summary of Javascript object literal namespacing.

Designed for humans first and machines second, microformats are a set of simple, open data formats built upon existing and widely adopted standards.

I’ve written and posted a Microformats Helper on the Code Igniter wiki. This helper is meant to ease the creation of various well known microformats. Currently, the most popular hCard format is supported. Edit: license is also now supported.