Which products, used by few today, will be essential in five years?

i think that WebCams will become more popular in five yrs time, so that you can see buddies when they are in America... also i personally think that the internet, for what it is, is still under used, although most people will use it... i think there will be vast improvements to almost everything that we have now so five years is too long!!! there will be new stuff to break!!! :P gamer76