There is an interesting documentary being filmed by Doug Wolens entitled The Singularity. The movie will contain interviews with folks ranging from neuroscientist Christoph Koch and philosopher David Chalmers to inventor Ray Kurzweil and CIA Director Leon Panetta. Needless to say, it ought to be an interesting film to watch. In the event that you wanted a better idea of what people who talk about "The Singularity" have in mind, you should hop over to The Singularity Institute for Artificial Intelligence. For now, here is an excerpt from their attempt to define the concept:
The Singularity is the technological creation of smarter-than-human intelligence. There are several technologies that are often mentioned as heading in this direction. The most commonly mentioned is probably Artificial Intelligence, but there are others: direct brain-computer interfaces, biological augmentation of the brain, genetic engineering, ultra-high-resolution scans of the brain followed by computer emulation. Some of these technologies seem likely to arrive much earlier than the others, but there are nonetheless several independent technologies all heading in the direction of the Singularity – several different technologies which, if they reached a threshold level of sophistication, would enable the creation of smarter-than-human intelligence.
If you would like to see their full description of The Singularity, see here. Regardless of if and when you think we will ever create machines that (or who?!) are more intelligent than humans, it is clear that if it we were to do so, it would create a wide variety of moral and legal problems at the crossroads of neuroscience and artificial intelligence!