Since 61 percent of you said that you rock a secondary screen when working, you're going to want to take note of this app for your iPad: iDisplay ($5) allows you to utilize your new gadget as a secondary monitor to increase your workspace. The second monitor would be a great place to display your email or social networking feeds, while you get your work done on your main monitor.
For now the app only works on your OS X, but a Windows version is coming soon for you PC users who like to dabble in Apple territory. Of course, you could just get this 13 inch panel from Medtech. It's probably a lot cheaper than buying an iPad, and it's got a ton of USB ports. Just sayin'.