Since iPhone 4S owners have recently been liberated, thanks to a good dose of Absinthe, you should go wild and install all sort of great tweaks available form the Cydia store.

I’ve already suggest two very nice tweaks that will take your Siri to a new level, in this post and this post.

Today it’s the turn of IntelliScreenX: this app alone is a good enough reason to jailbreak your device, that’s how good it is.

Once installed, the app adds countless widgets to your iPhone’s Notification Center and gives you the option to fully customize the look of it.

When you have this tweak installed, you won’t even need to unlock your phone any more! You’ll be able to access settings, messages, mails and all the features you want to have in your Notification Center, with a single finger slide.

The app includes:

- View Calendar, Email, Text Messages, News, Facebook, Twitter, Weather, and more from your iPhone “Slide To Unlock” screen.

- Taskbar Icons for Missed Email, SMS, Phone calls, and Silent status

- QuickView/Preview Entire Email

- Access QuickSettings like brightness, airplane mode, Bluetooth +

- View/Mark Read/Unread/Delete your Emails from the Lock Screen

- Completely integrated into iOS5 Notification Center

- Integrated Twitter and Facebook pages

- Post/Comment/Tweet from anywhere

- Advanced RSS Reader uses iOS 5 Reader to show “just” news

- Reply to SMS/iMessages with Message+ (free)

This amazing tweak is available from the Cydia store, just tap Cydia’s icon and search for IntelliScreenX, for $9.99. If you want to try it before buying, there’s also a free trial.