Google Glass is essentially a smartphone that does not require a contract or plan. It integrates alternative methods of messaging such as Skype, Google talk and Facebook messenger. In doing this Goggle Glass can cut the cost of communication costs greatly.
Impact on media and communications
I believe Google Glass will provide an alternative to using a smartphone in the future. However as of now it will only be used more so by professionals rather than the public. Currently Google Glass is replacing many smartphone features such as talking, messaging, taking pictures and recording. These are all key components of media and communications.
How it works