iPad as 2nd Display

Your iPad can act as a second computer display within a Wi-Fi network.

Amazing, right? But there are caveats.

READ THESE REVIEWS FOR MORE INFO:

Air Display:

Add a second or even third monitor for $10 with Air Display!

App Turns iPad into Second Monitor for Mac

Use Your iPad as a Second Monitor, Without the Pain

$9.99 Air Display for iPhone, iPad , and iPod Touch by Avatron
Sys Reqs: Mac OS X 10.5.8 Leopard, Windows XP, Vista and 7

iDisplay:

app turns your iPad or iPhone into secondary screen – too good to be true?