Do you watch hours of video on your iOS device, such as recordings of lectures or how-to instructions? You can actually save time and still see all of the important information with the FastForward tweak. Just as it sounds, FastForward makes it possible to watch video at a faster rate on jailbroken iOS devices.
Once installed, you can select which apps to enable with FastForward and choose a playback speed. With a playback rate of 2.0, your videos will play at twice the normal speed and in half the time.
The developers recommend using a speed of between 1.0 and 2.0 to prevent video players from skipping frames. Of course, you will still hear the audio which makes FastForward a useful tool for those who are trying to watch something in a hurry.
FastForward is available on Cydia from the BigBoss repo free of charge. Check here for instructions on how to jailbreak iOS 6.x with evasi0n. You can also find out how to purchase and install Cydia tweaks with this guide.