On Friday's edition of Tech Teardown, host Erin Kennedy and Motley Fool tech and telecom bureau chief Evan Niu discuss the biggest stories in tech from the market this week. Apple may be considering a major overhaul to its iTunes store, with iTunes music sales and iTunes Radio both continuing to underperform. Should investors be concerned? Then, could consumers soon see the end of Nike's FuelBand, replaced by a partnership with Apple?

Also, Evan takes a look at the latest numbers from the PC market, and why they weren't as bad as they were expected to be. He discusses who is currently on top among the PC vendors, where the weakness in sales came from geographically, and why Microsoft's discontinuation of support for its Windows XP operating system could have been a catalyst that gave PCs some unexpected strength.

Evan then looks into one projection that has the smartphone application processor market continuing to grow annually at 11% through 2018 into a $30 billion market and who stands to benefit most from that trend, and he also discusses rumors that BlackBerry was considering exiting its hardware business, and just how long it can keep that business afloat if the losses don't stabilize.

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Erin Kennedy owns shares of Apple. Evan Niu, CFA owns shares of Apple and Qualcomm. Evan Niu, CFA has the following options: long January 2015 $460 calls on Apple and short January 2015 $480 calls on Apple. The Motley Fool recommends Apple, Google (A shares), Intel, Nike, and Pandora Media. The Motley Fool owns shares of Apple, Google (A shares), Intel, Microsoft, Nike, Pandora Media, and Qualcomm. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.