This reminds me of Lytro, a "light field" camera, that could be focused digitally after-the-fact to any focal plane using online software. Does anyone know why

This reminds me of Lytro, a "light field" camera, that could be focused digitally after-the-fact to any focal plane using online software. Does anyone know why Lytro couldn't be shrunk to fit in smartphones? Because this seems like similar technology.