The device will also transmit information and receive information from other devices while they are not being used.   They will "talk" to each other and the main server.

This will increase the data flow.  Take a look at this diagram, it may help explain how this may work

Who will use the device ?

Just about every one.

Just as people use wristwatches to tell the time today.

The device will be so cheap to manufacture, that they will be able to be disposed of when the small battery they contain as a back up is no longer able to supply power.

Even while a device is not in use by a user it could be used as a receiver/transmitter to bounce signals to a device in use.

Signal strength could there fore be reduced while maintaining higher band width.

Smaller packets could be sent to each device improving security.

Just think about all the mobile phones which are not in use 100% of the time. With a bit more electronics these could be used as a relay type device bouncing a signal to the ultimate user.

Image of how devices may be linked.

Click to view Sending of Data Packets.

The main difference would be that each device would be able to transmit data as well as receive.  If mobile phones and other devices are given an ability to transmit as well as receive they could be used as repeaters, and even as rooters. That is they could receive data, boost it and then transmit that information to the next device. This could be carried out while the device was not in use. As the devices become more popular the signal strength of transitions could be reduced making them even safer.  Each device could be use to pass on a packet of data.  With so many devices larger amount of data, e.g. video, could be split and each packet transmitted and reassembled for the user in real-time.

Just imaging all those mobile phones sending data to each other while they are not actually being used by the user. This could make the mobile phone use less expensive, (or even free), because the company could discount that users to use there mobile phone for data transfer while not in use.

TedTalks

What if every light bulb in the world could also transmit data? At TEDGlobal, Harald Haas, Jacobs University, demonstrates, for the first time, a device that could do exactly that. By flickering the light from a single LED, a change too quick for the human eye to detect, he can transmit far more data than a cellular tower -- and do it in a way that's more efficient, secure and widespread.

Nick Named Li-Fi Light High Fidelity

Talking Light: Jacobs University develops a wireless LED-based data communication system for airplanes

Jacobs University new light-based data transmission technology will open a whole new range of wireless on-board applications in air travel, amongst them Internet usage during flights. In the context of the federal aeronautic research program Jacobs University receives about 673.000 Euros from the Federal Ministry of Economy for the development of a wireless light-based communication technology in aircraft cabins. Corner stone of the system is an optical interface for data coded light signals of light-emitting diodes (LEDs), which allows for electromagnetic compatible, intelligent data transmission under the specific conditions aboard an aircraft while at the same time achieving a significant weight reduction of the airplane through reduced wire usage. Project leader at Jacobs University is Harald Haas, Professor of Electrical Engineering. School of Engineering and Science

TedTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts.

What is Internet Packet Switching?

A very, very simplistic view of Packet Switching.

Basically data is split into separate packet. Each Packet can then be send via a different root.

Each packet contains extra data to say where it is going and the order it should arrive in as well as some verifying data