Use 'video games' as an example of a technological development and indicate briefly what the moral and ethical issues raised are?
To me, the moral and ethical issues brought up by video games have very little to do with the fact that they are a new technology. Instead, they come up because of the inherent tension between ethics and morals on the one hand, and profit on the other.
The tension there is whether any and all video games will be allowed or are proper, regardless of whether they are good for their users or for society. There are many video games that promote violence and/or sexual exploitation of women. These games are, arguably, bad for society and video game makers as well as lawmakers must decide it the harm done to society will outweight the right of the games' makers to pursue their business.
The video game violence argument has been one that has gained greater significance over the last ten to fifteen years. Of notable attention have been games like "Grand Theft Auto" and "first person shooter" forays have been heavily criticized for their use of violence and sex in a manner which glorifies both. Studies have linked video game excessive engagement with higher rates of aggression in students. Valid or not, there has been a great deal of social attention paid to the messages conveyed by video games, and represents an implication that might not have been originally foreseen when the genre first emerged.