article_snippet.sent: Android has a similar feature that works over Bluetooth.
article_snippet.sent: This is particularly useful when on a plane, or the underground.
article_snippet.sent: This can also be used to save money on data plans, for example.
article_snippet.sent: This helps keep track of where data is being . transferred to and from on the network.
article_snippet.sent: It could also be placed in certain locations at music festivals, organised protests, football matches and other events where having large numbers of people can crash networks.