With iUnlock you can enjoy change the animation when unlocking your device, It has many animations that you can see in the video: fading, sliding to either side, cube effect, etc. You can also modify the gesture to unlock, and put a swipe gesture from bottom to top, like Zephyr.
Also you can change the sound of unlocking by default among a lot of new sounds that the application itself has integrated.
You can download it for $ 1,99 on Cydia, although you have a 3-day trial before paying; you will find it in the BigBoss repo. You need to have done the jailbreak on your device.
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