Would-be inventors may well ask, in this modern era, with so much already invented, is it becoming virtually impossible to invent something significant like the iPhone? I don't think so. For example, there is a virtually untouched market of devices to communicate to and from the body and the brain. While initially developed at great expense by institutions such as for aids to the handicapped, the technology will become cheaper and simpler and will be available to everyone. A clever inventor should find plenty of opportunity there to create novel and practical communications devices.
