Re:Hmm... (Score 0)

Not quite just mouse gestures. It actually renders the web pages in a way that, to a passer-by, you appear to be working on your big marketing presentation and not reading Slashdot.

To quote the site (since it has, of course, been ./ed):

Ghostzilla is a browser for surfing the Web when you don't want anyone to physically see what you are doing. It renders Web pages to look indistinguishable from your work screen. You make it disappear instantly with one move of your hand and bring it back with another. Ghostzilla can show Web pages discreetly within literally any application you work with. To see how Ghostzilla makes the illusion of not being there for anyone but its user, take a look at the screenshots and a video of its usage.

Better than sticking your nose on the laptop monitor, methinks...