Computerised glasses are, at this moment, the wearable computing technology that is most likely to herald the beginning of the end of the Smartphone era. Although they are each taking slightly different approaches to these technologies, Apple, Google and Microsoft are all striving to define the market for wearable computers of which computerised glasses are an integral part. The US military, especially the Special Forces units, already use wearable computers for communications and satellite navigation tasks. That technology hasnt yet reached consumer or business users, but it soon will. Smart glasses are due to be launched selectively in the New Year.