Hmm, it might be my pareidolia, or some Rorschach-effect, but when i look at the Android logo, i don't see a smiling robot there, rather the opposite. I see a green head of an insect, an ant, or bug, which somehow makes sense, considering the ideas of Media-theorist Norbert Bolz, who states that humans acquire behavioral qualities similar to those of insects when participating in networks (hence "Buzz" etc.), and of course considering the spyware-like "features" an Android phone offers. I don't think big companies leave their logos to chance, there are many smart minds behind those decisions, so if there's really a bug-head masked as robot, it must be some sort of dark humour.
But i'm not laughing.