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

AT&T announced a big deal with Crown Castle, which will help it raise cash for other important strategic initiatives. 

Apple gets a big vote of confidence ahead of its official iPad unveiling. Meanwhile, Microsoft is preparing for the retail launch of its Surface 2. Nokia will join the tablet party for the first time ever with the Lumia 2520.

Google might be about to grab another Chrome OS partner in LG, which currently makes Nexus phones. That would add to Google's already large stable of Chrome vendors.