President Obama can't use an iPhone.

The president says he's not allowed "for security reasons," that's why Blackberry has at least one very loyal customer.

Obama uses a special Blackberry with extra security features, but only because he fought to keep it when he first moved into the White House in 2009 -- aides and security officials didn't want him using any cell phones at all.

Even though the president isn't using an iPhone, he does say he uses an Apple iPad.

Apple is one of several tech companies that reportedly allows the NSA access to customer information.

--Rob Archer