I'll probably be down-voted here for even saying this but I think we shouldn't endow machines with too much intelligence too fast. It won't be too long before we learn how to make them sentient and that's when we'll decide to accept them as equals or not.

At least until we as humans learn to get along better we might be better to hold off on this. Dumb robots that know how to do one thing and do it well will surely suffice for the meantime.