You may remember our brief run-in with 50 Cent back at CES, where he announced a partnership with Sleek Audio for Sleek by 50, a pair of "wireless hybrid" headphones with built-in Kleer technology. Today the company announced that it has terminated its agreement with G-Unit Brands, 50's licensing company, and that it will be "re-evaluating our Wireless Hybrid over-the-ear headphones at a later date." There's no word why the relationship went awry, and the company only indicates that it has decided to focus on its in-ear offerings in