This is hot. From the Lifehacker Article:
Mozilla Labs unveils the first prototype of a natural language web service connector called Ubiquity, a Firefox extension that adds a command panel to any web page. Ubiquity will look familiar to Quicksilver, Launchy, or Enso users: you invoke Ubiquity with a key combination and the text field drops down command suggestions as you type. Ubiquity’s built-in command set consists of “user-centric mashups” that let you perform tasks using various web services in one place using natural language.
