Twenty years ago, Huey Lewis and the News had a smash single called "Hip to be Square." Soon, the phrase "hip to be square" will apply to driver heads. Both Callaway and Nike are hard at work on these odd-looking drivers. And they're coming soon; expect the sticks to be at retail by next spring.
Square-headed drivers certainly stand out from the crowd. But there's more to it than that. Manufacturers continually strive to build a better mousetrap. Current approaches for redistributing mass include newfangled geometric shapes, multi-material heads and the use of removable weights. Squarish heads are really the next logical progression (and they're well within the Rules of Golf).
More on these clubs as additional details become available.