Enable Five Icon Column on iPhone using “Five Icon Dock”

Now you can enable a fifth column / icon on your iPhone using a new cydia app called “Five Icon Dock”, it will to squeeze more number of app icons on iPhone’s homescreen, This app is developed by Jay Freeman a.k.a Saurik, who manages the Cydia store and developed PDF Patch to fix pdf exploit for all devices!

Note: There's two guides to add a fifth column to your iPhone, the first is to add it to your iPhone dock using "Five Icon Dock", while the second is to add it to your task switcher using "Five Icon Switcher", both guides below,

To add a fifth icon to your iPhone dock follow the steps below,
Step 1: You need to have  jailbroken iPhone, use the guide posted here to jailbreak any iPhone on iOS 4 / 4.0.1
Step 2: After jailbreaking, Launch Cydia and tap on "Search" tab then search for "Five Icon Dock"
Step 3: Now, tap on “Five Icon Dock” and touch on "install" button
Step 4: After the installation is done, reload your Springboard and you will be able to add fifth icon to your apps!

To add Fifth icon to task switcher use the steps below,
Step 1: Launch Cydia and tap on "Search" tab then search for "Five Icon Switcher"
Step 2: Now tap on “Five Icon Switcher” and touch "install" button
Step 3: Once it's installed, reload Springboard and you will be able to add a fifth icon to your task switcher

 Hola! Now you got a fifth column icon on your iPhone, have fun!