As a less expensive, different-colored version of the company's earlier and less catchy-sounding D-33, iFrogz' EarPollution Plugz ($15) is a pair of in-canal earphones bundled with three sets of silicone rubber earpieces and nothing else -- the prior model's carrying case is now gone. Available in at least four color combinations, Plugz is one of the cheapest earphone options we've seen. It works with the iPhone 3G, but not with the original iPhone.…
