This week on the Smart Things Podcast, we discuss how sensors will make your next smartphone smarter than ever. First we explore modular phone systems which allow you to swap out parts on the fly. We then look at Google's Project Tango, which stuffs a 3D scanner in your smartphone. Lastly, we talked about Mobile World Congress, the mobile expo, where Samsung released thier new flagship devices, Sony steps up to bat and Nokia released an Android device.