While not in a pen and paper campaign, we had similar things back in the day when i used to play with my various action figures.
Ok, this may sound uber-geeky, but my brother and I had what could be called a campaign, or running saga, that lasted until high school.
Anyway, androids and robots and sentient computers were a big part of this, while we didn't dwell on the metaphisics of the situation, it was basically becoming appartent that artificall life was becoming a 'new race'. They were becoming independant of their creators, and one android even pulled a Magneto and was our main nemisis, striking a blow for machine kind again and again.
Eventually, the heroes and their govt decided that his basic argument, that androids have rights, was correct, and the Androids were given a homeworld of their own!
Next came the ability to reproduce( and not in some big old factory either!)!!
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"Yes, it's the Apocalypse alright. I always thought I'd have a hand in it"
Professor Farnsworth