What are Folders for the iPhone?
With the introduction of the new iOS 4 for the iPhone and iPod Touch a new feature called Folders was introduced. Folders are a great way to organize your apps on your device. Not only do they allow you to organize your apps, but they also allow you to squeeze a lot more apps onto your iPhone.
A folder on the iPhone is like a folder on your desktop computer. You can name it and store apps in it (up to 12 per folder). Once you make a folder, the icon acts like any other app icon. It can be moved and deleted, but it can also be renamed. It can even rest in the dock of your device.
Previously you could only fit 144 apps onto your iPhone, or 9 screens of apps. Now, with Folders, you can fit 144 folders with 12 apps each! That is a lot of apps! Of course, the storage on your iPhone and the size of apps will also play a part in how many apps you can have on your iPhone.
Folders also let you be more organized and have fewer screens to scroll through looking for a specific app. I have narrowed my screens down to two on my iPod Touch. One screen has apps I regularly use and these apps are not in folders. The second page has all of my folders, with space to spare on the screen and in the folders.