SliderWidth is a new jailbreak tweak under the ModMyi repo that allows you to change the width of your slider.
You can set the slider width as much as you want. You can also set a costume text instead of the regular "slide to unlock", and if you want you can set Apple logo.
Also, SliderWidth has an option of the costume width for the iPad. So this tweak is compatible with the iPhone, iPad, and the iPod Touch.