i flew on an airline once who had a camera mounted just behind the front nose gear... you could switch to the channel from your inflight tv and watch everything happening from taxi, take off, inflight and landing... it was an awesome function... they have since taken off this function now as i heard it caused panic for some passengers who would watch the landing, and panic due to not seeing the runway when landing and thinking they were going to crash... when in reality the aircraft crabbing in due to the crosswind...
for some.. ignorance is bliss...