Turn Your iPad Into An External Monitor Via iDisplay

Can’t think of what to use your iPad for, aside for browsing the Internet? Well, if you’re using your iMac most of the time, you can still make use of your iPad, by turning it into an external multi-touch display via the iDisplay app. The app will connect to your iMac either over 3G or Wi-Fi, so you’ll be able to use it as a spare display, maybe putting your chat windows in the iPad. Considering that the iDisplay app is $4.99, it’s certainly cheaper than buying a spare monitor (assuming you already have an iPad).