You thought your iPhone could do just about anything? Think again! I handpicked 10 applications for jailbroken iPhones that will boost your productivity and unleash the real potential of the iPhone. You won’t find these applications in the App Store. You’ll have to jailbreak your iPhone in order to install any these apps.

If you don’t have these apps on your iPhone, you’re missing out on 10 must-have features.

Xpandr

Xpandr is a shortcut expander for the iPhone / iPod touch. It allows you to define an unlimited number of shortcuts to save time and make your life easier. It works in every application, even on App Store applications. More about Xpandr.

ProSwitcher

ProSwitcher is a multitasking app for the iPhone that kinda replicates the Palm Pre “cards” feature by adding a very nice UI to Backrounder, the jailbreak app that allows you to run apps in the background. More about ProSwitcher.

AttachmentSaver

AttachmentSaver gives you the ability to download attachments of all types, whether supported by the Mail.app or not, and save them into a folder on your iPhone disk. More about AttachmentSaver.

Find in Page

Find In Page is an application that will help you find any text on any web page in Safari. Now every time you visit a page in Safari and you’re looking for a specific word, simply open your bookmarks and tap “Find In Page”. More about Find in Page.

mQuickDo

Originally, mQuickDo lets you set up gestures to perform predefined actions (ie. slide left to right to close an opened application; or slide right to left to shut off the phone, etc…). The real power and most exciting feature about mQuickDo is the App Switcher. As its name suggests, the app switcher allows you to quickly switch between apps. More about mQuickDo.

QuickScroll

QuickScroll is an application available in Cydia that lets you scroll through documents and web pages very quickly. Once you have installed QuickScroll, simply tap 3 times anywhere on the page and a dialog will show up. Drag the scroller (see on the right of the image above) up and down to quickly go wherever you want on the page. More about QuickScroll.

GriP – Growl for iPhone

GriP tries to strike a balance between being unobstructive while still being able to give out clear information. With GriP, messages are (by default) shown as small floating windows in a corner, which will automatically disappear if you ignore it. In this way, you can still continue your process without missing anything. More about GriP.

Orbit

Orbit brings you an instant way to switch between pages on your home screen. Based on the “iPhone Expose” concept, this modification gives you an icon that, when tapped, animates your home page into Orbit. More about Orbit.

Action Menu

Action Menu is one of those mods that once you try it, you simply can’t live without it anymore. Action Menu takes a stab at enhancing the copy/paste function of your iPhone by adding a bunch of add-ons to it. More about Action Menu.

MultiIconMover

This app is very simple yet very practical. It allows you to select multiple icons to move them to a different page on your springboard. So instead of moving your icons one at a time, you can select many of them and move them all at once wherever you want. More about MultiIconMover.

I wouldn’t be surprised if Apple implemented some of these applications’ features in the next iPhone OS.