According to a friend's analysis, this appears to be using a rather ingenious dual slit-scan technique where it's gathering the leftmost and rightmost columns o

According to a friend's analysis, this appears to be using a rather ingenious dual slit-scan technique where it's gathering the leftmost and rightmost columns of pixels from the CMOS as the phone is turned, and then using the offsets between these columns against the two scans to re-create parallax. Fascinating stuff.