Requires iOS 3.2 or higher
Notifier+ is the debut release of the application "Notifier", supporting our beloved iOS 4.x. Notifier+ allows the user to create and schedule reminders for all sorts of actions built into iOS. Support is available for Calls, Voicemail, Messages, Email, IM's, Calendar Events and Invitations.
Notifier+ even lets you set your own custom sounds to these reminders by simply adding your desired audio files in a specified folder.
Available in Cydia at a special introductory price of $1.99.
Parallax is a tweak that allows you to use scrolling wallpapers. The effect can simulate something like the Android devices do. It is recommended that iPhone 3G users avoid using this tweak, as it simply does not handle the processing that well.
Available in Cydia for $1.49
"iDiscrete operates on a simple principle: "To securely store your private content (videos, images, et al.) on the iPhone, and do so in a 100% discreet way."
iDiscrete employs its patented Touch Sequence Protection™ to do away with passcodes and passwords. This works by bringing up a nondescript "Loading" screen upon entry to the application, which registers touch input in 8 separate locations. The user has predefined their desired Touch Sequence, which can be as simple or as complicated as they wish. The Loading screen will only grant access to iDiscrete if the correct Touch Sequence is entered. Otherwise, when the Touch Sequence Timeout expires without receiving the correct sequence, the app will boot to a generic-looking text entry interface.
You may have heard of iDiscrete in the App Store, but don't confuse it with this version. iDiscrete JB is the TRUE version of the app, the way they originally intended it, without Apple's silly restrictions!
This app is available in Cydia for $2.49.
Simply hides all homescreen icon badges. It's Free in Cydia.
I would detail the changes, but they aren't listed.
With this tweak, you will get alerts (visual, haptic and audio) if the charge of your iOS device will drop under a certain percentage. Available in Cydia for $1.50