Unity Web API v 1.0

The Unity Web API is a toolkit for Web applications and pages to integrate
with the Ubuntu Desktop. This is a Developer's guide, for user-oriented
information about webapps check here. For developers, the Unity Web API
provides a collection of ways to increase the presence of your application
on the users' Desktop, and expose application interactions through Unity
components. Points of integration include a spot on the Unity Launcher,
integration with the Messaging and Music menus, and even exposing actions
to the new Unity HUD!

The Unity Web API is currently available for Ubuntu 12.10 (Quantal
Quetzal), in both Firefox and Chromium. For information about installing
the Unity Webapps System visit the WebApps team on Launchpad.

Continue reading for a 10 minute quick-start guide to integrating your Web
App with Unity. If you have already started and are looking to do more:
reference documentation for the API is available.

http://developer.ubuntu.com/api/ubuntu-12.04/javascript/index.html

A very interesting web/desktop integration.  As unity gets rolled out onto
tablets and mobile it could set a standard for web experiences on devices
of all kinds.