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If you think technology is leaving you behind, take a look at these five, top-selling must-have gadgets that have entered the market since 2000. You don't have to be a technogeek to appreciate any of these nifty devices, and you don't have to be a millionaire to own one, either!

Fastest Selling Electronic Device Of All Time

This one goes to the Apple iPad. First introduced in 2010, the Apple iPad has taken the gadget world by storm. Earlier this year, Apple announced that the iPad had become the fastest-selling electronic device of all time, and the company expects to sell more than 100,000,000 units by the end of 2012. The device has already undergone one major redesign in its scant 15 months on the market, and analysts are already talking about an iPad 3 release that could happen as early as the fourth quarter of 2011. Rumors abound regarding what the iPad 3 might potentially offer, and range from retinal scanning to HD displays to the e-commerce darling, near-field communications.