This is a "zipper" that replaces the standard slide icon, which is a grey square with an arrow in center. Works for the new iPhone 4. iOS4 Email me if this does not work, cause its great on my iPhone 4, this is the first time putting material on Cydia. Thanks.
Donations welcome: (with further more and better themes)
Paypal: fly_n_65@hotmail.com
Thanks again.