You know those computer desktop wallpapers that look like you can see right through them to what’s behind the monitor? Well, someone took that concept and developed a 99¢ app for the iPad 2 that displays what’s underneath your iPad right on the tablet’s screen.

Using a combination of the iPad 2′s camera and gyroscope, Invisibility requires you to take a picture of your table from two feet up, then place the tablet down on the table’s surface. Start rubbing away at the screen and watch your picture “magically” come into view. Now it looks like you can see right through the iPad to the table. Grab a corner and turn the device, only to have your friends amazed that the image never moves – like the iPad was made of clear glass.

Invisibility doesn’t use live camera footage, as it can’t focus so close-up, but it should provide afew “oohs” and “ahhs” from friends who don’t know any better. It’s a buck – why not?

And another nail in cable’s coffin is hammered into place.

The ultra-cool, ultra-affordable Web TV service Hulu announces the launch of its much anticipated Hulu Plus service that brings all the great entertainment you’re used to, such as Family Guy, Arrested Development, Prison Break, and Desperate Housewives, to your Internet-enabled TV, PS3, iPhone, iPad, and–coming soon–Xbox 360. That, of course, is not all encompassing. The good folks at Hulu have designs on bringing the $9.99 per month service to more devices in the near future, but you get the idea.

It is not intended to replace Hulu.com, but instead acts as a supplement, featuring whole runs of TV shows, both new and old, all available for the low monthly premium. Why am I a cable subscriber again?