Apple limits the number of tabs you can open in mobile safari browser to a maximum of 9 . With Tab+ jailbreak app you can increase this limit and open as many tabs you want before the memory (512 MB RAM) on your iPhone 4 runs out . Tab+ is a Free to Download tweak available in BigBoss repository . Supported on jailbroken iPhone iPod Touch and iPad .
To download Tab+ you must first jailbreak your iPhone 4 and install Cydia. Then go to Search tab in Cydia and type Tab+ . Tap to install . This is a Free package and there are no icons or settings for this app . You can test the functionality of this app by just opening more pages on safari browser and see it exceeds more than 9 , which is the maximum allowed limit by Apple . Tested to work on iOS 4.3.3 and later .