Microsoft delivers solid earnings and is showing signs of a successful transition toward becoming primarily a devices-and-services company, but there are still critical tests ahead. Apple will very likely be releasing two new iPhones this year with bigger screens, which pleased investors; but one very rich investor by the name of Carl Icahn is still very unhappy with the company. Qualcomm has agreed to buy several phone-related patents from Hewlett-Packard, as HP continues to streamline its business and focus on a turnaround. And Facebook's new broader mobile ad network could be all win for the social network, and bad news for Google.

In this episode of Tech Teardown, Erin Kennedy discusses the latest developments in the tech sector with Evan Niu, CFA, our tech and telecom bureau chief.

Erin Kennedy owns shares of Apple. Evan Niu, CFA owns shares of Apple and Qualcomm. The Motley Fool recommends Apple, Facebook, and Google. The Motley Fool owns shares of Apple, Facebook, Google, Microsoft, 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.