Many moons have passed since we've seen a new iPod shuffle or iPod nano case, but a company called Vibewired Inc. has come up with a new option for people who want to mount Apple's smallest devices really close to their heads. Perhaps unaware of H2O Audio's Amphibx Grip, it touts the separately-sold Vibewired Shuffle ($30, shown) and Vibewired Nano ($30, not shown) as the "only water/sweat resistant case[s] on the market to protect the nano &…