From chpwn and posixninja comes Gridlock, a powerful tweak that allows you to arrange your icons however you would like, with drag and drop simplicty. No longer will you need blank icons which have ugly shadows, or you have to remember not to tap. Free your icons today!

Fully compatible with your favorite icon tweaks: Infinidock, Infinifolders, FCSB, Iconoclasm, and FiveIRows (in addition to many more not listed here).

See More Info below for screenshots.