Michael Fisher on Twitter: "BlackBerry 7520, built in 2004 for iDEN networks like Nextel - hence the extendable antenna and big top-mounted PTT button. It was also my first smartphone. Still remember
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A customer samples a Sprint Nextel BlackBerry Curve at a Sprint Nextel store in San Jose, Calif., Wednesday, Feb. 18, 2009. Sprint Nextel Corp. said Thursday, it lost $1.6 billion in the