One of the new features of the new iPad is the Retina Display, which has 2048 x 1536 resolution, gives you sharper text, has 44 percent greater color saturation and has 3.1 million pixels. That is four times the number of pixels than the iPad 2 and a million more than HDTV. All of these new features are in the same 9.7-inch screen space as previous models.

The Retina Display is a breakthrough in the development technology of displays. To create a display with four times the pixels, Apple had to design it in a completely new way. Every pixel in a display has multiple signals telling it when to light up. However, when you have a lot of pixels and a lot of signals on the same plane, signals get crossed and image quality suffers. To make sure that everything on the new iPad looks crystal clear, the Apple engineers elevated the pixels onto a different plane and separated them from the signals. This resulted in near photographic realism.

iOS 5 allows users to split the keyboard on the iPad. This feature makes it much easier to type quickly and to thumb type in both the portrait and landscape modes. In order to split the keyboard, swipe with both thumbs from the center of the keyboard outward or tap the little keyboard icon in the lower right corner and select "split keyboard." In the split keyboard mode there is a set of hidden keys or invisible keys that sit just beside T, G, and V on the left side of the split keyboard, and just beside Y, H, and B on the right side. To use the hidden keys tap in the blank area just outside the keyboard next to the T (outside of the keyboard background, too) to get a Y, type just outside the keyboard next to the Y in order to get a T, and so on. You can also move the split keyboard around the page so you can see your latest lines of typing. To do this, tap and hold on the keyboard button and then drag the keyboard to where you want it to be on the page.

One way to conserve the battery power on your iPhone, iPad or iPod touch is to turn off applications once you are finished using them. Follow these instructions to turn off the applications running in the background. Tap the home button twice. At the bottom of the screen you will see a row of app icons (these are the apps that are running). Touch one of the app icons and hold your finger on it until they all start to jiggle. A small red circle with a minus sign in it will appear at the top left corner of the icon. Tap on the red circle and the app icon will disappear and the app will no longer be running in the background. When you have closed all unnecessary apps, tap the home button and the apps will stop jiggling. Tap the home button again to return to your home screen. For more tips on how to conserve battery power on your iPhone, click here.

Most users have a decent Wi-Fi signal when they're sitting in the same room as their wireless router, but what if you're on the other side of your apartment or in the basement? If you have a weak signal, the free site survey app Netspot is a utility that gives you the tools to draw out your floor plan and walk about your home or office with your laptop to survey network strength, available networks and channels in use along the way.
The app starts you off with a drawing tool that you can use to lay out the floor plan of your home or office. Once your space is laid out, you can click any spot on the map to have the app scan the area for available wireless networks, their network type, the signal strength for each network and more. It will save the information behind the scenes and you can move on to the next spot in your space to test. After you've covered the whole area, Netspot will show you where your wireless signal is the strongest, where it seems to drop off and even give you a color-coded heat map of your space so you can see where you may need to install a repeater for additional signal strength.