Ghostzilla - the secret browser
When you can't browse because of who might be looking over your shoulder.
This very nifty, full-featured browser doesn't show anything when first loaded. When you gesture with the mouse, the browser subtly appears within the confines of an existing application window of your choosing. But instead of showing the color and graphics of many web sites, the pages are rendered using gray text, with images hidden until you mouse over them.
Boss starts looking closely at your screen? A quick mouse gesture hides the browser.
Based on the Mozilla open source project. See the screen shots and animation of how it works at http://www.ghostzilla.com/