The world's first wireless brain-Computer interface
A BCI, or brain-computer interface, is a device that feeds your brain activity into a computer, where it’s usually processed (to work out what you’re thinking) and acted upon. BCIs usually consist of a large mesh of electrodes — an electroencephalogram, EEG — which is then wired into a PC. This is great for lab-based testing, but not so useful if you want to use your BCI at home, out shopping, etc. The Brown University BCI, however, is implanted under the skin, and communicates with a nearby computer wirelessly.
Negative use...
Brain computer interface can be negatively used in cases where people are tested or examinations to say, people can easily google or have access to information. People with spend much time exploring information on the internet forgetting to complete simple daily task. Security measures of BCI can’t be trusted; developers of these devices can have the advantage to control these chips in your brain that is like “hacking human’s brain”.
http://io9.com/359932/the-pros-and-cons-of-a-google-brain-implant
3D Printing and remote manufacturing
Three-dimensional printing allows the creation of solid structures from a digital computer file, potentially revolutionizing the economics of manufacturing if objects can be printed remotely in the home or office rather than requiring time and energy for transportation
Negative use...
Although 3D printing is the great thing but there are some negative use or bad side of it. The ability to create 3 dimensional objects can lead to people creating objects that cannot be controlled easily for instance weapons like knifes guns and stuff. Assembling chemical compounds on a molecular level using a 3D printer is possible. A researcher at the University of Glasglow created a prototype of 3D "Chemputer" that makes drugs and medicine. He wants to revolutionize the pharmaceutical industry by allowing patients to print their own medicine with a chemical blueprint they get from the pharmacy. Of course, this is a very long way off, but it stands to enable DIY chemists to create anything from cocaine to ricin.
http://www.techrepublic.com/article/the-dark-side-of-3d-printing-10-things-to-watch/
Cloud Gaming is the future
Cloud gaming has been a tech buzzword for years. The idea is that we’ll no longer need gaming PCs or consoles with powerful graphics hardware. All the heavy lifting will be done in the cloud. Cloud gaming has much in common with streaming videos. Essentially, the cloud-gaming server runs a game and streams a video of the gameplay to you. Your keyboard, mouse, and controller input actions are sent over the network to the cloud gaming server. The remote server does all the heavy work, while your computer just receives streaming video (and audio) and sends input commands. Essentially, cloud gaming is like a streaming video service, but interactive.
Negative use...
Cloud gaming is eventually growing big but it has some negative to gamers, for instance the market of gaming consoles like PlayStation, Microsoft Xbox, and Nintendo is threaten to fall off. Gaming console industries will slowly drift away from the market since the existence of games in the cloud with no need of high powerful graphics. Most video gamers still believe in traditional gaming console, cloud gaming is too dependent on the internet so as soon as the internet cuts, so the gaming does. There will be extortionate prices; gamers are forced to play online there will be more of “subscribe to this” and “subscribe to that” even after they’ve paid for games. Gamers want to feel the ownership of their games; they want to be in control of their games they want to be able change game modes and stuff. Lag is the major problem with cloud gaming, that millisecond is noticeable to gamers.
http://www.forbes.com/sites/eliseackerman/2013/02/24/is-sony-afraid-of-cloud-gaming/