I am not too sure if Steve Jobs is actually working on something to solve the signal woes in iPhone 4G, but Gresso is effectively tweaking the same phone to lure Apple fans. Along with enhancing its glam factor, they are also claiming to eliminate the signal problems by offering the iPhone 4 Black Diamond. This time they have studded the 18-carat gold Apple logo on the unique 200-year-old African Blackwood case with a black diamond. The communication quality also has been solved by modifying the design. The black PVD coated durable steel frame along the perimeter promises uninterrupted signal and adds to its appearance too! For $10,000, it can be picked up from authorized Gresso dealers in Russia or from their website.