What smells like a browser plugin but tastes like a commandline?

After reading ArsTechnica this evening, i came across Ubiquity - a new mozilla labs addon for firefox which enables a commandline style interface into the web-browser. ideal for creating live mashups. This Video explains what it does fairly well:

As a webdeveloper, i've managed to do a few cool things using this, by utilising it's built in commands and by creating my own. Some notable built-in commands:

• delete - deletes the selected HTMl from the page you are viewing
• edit-page - places the page into edit mode, letting you change the content in real time
• syntax-highlight - Tries to syntax highlight any text you have selected

map-these looks like it will be really good when it's extended a bit, but isn't very useful right now.
I've made the following:

• php - searches the php.net website for the text you give it (i.e. try "php date")
• tinyurl - a simple extension of the demo tinyurl which gives you the URL in the preview window
• weatherforecast (work in progress) - an extension of weather which displays the next 5 days weather
• spell (work in progress) - checks spelling of text

Our office's Ubiquity commands will be uploaded to our new "Laboratory" website, which will be public soon...