I don't know if it will be ready by 2020, but I can't wait for the arrival of all-in-one, fully integrated, hands-free, personal internet and media devices.
you know, like a pair of stylish glasses that you can wear in any light, indoors or out, that provide you with your own personal HUD wherever you go. augmented vision through a retinal display in one eye (so that the other eye still provides awareness and depth perception) that allows you to browse the internet or make phone calls while you walk around during your day. you can also receive live/streaming information about locations that are around you.
so yeah, basically a personal HUD that acts like a personal computer, tailored to the individual. it has GPS, full internet browsing capability, full cell phone capability, full MP3 player capability, etc. if you're walking around New York for instance, and you want information about Broadway, your personal HUD will collect and stream data right in front of you: statistics, trivia, schedules, pictures, video, audio samples, etc.
and in the even more distant future, this personal HUD will be fully integrated with your nervous system.
they might install this on the side of your head and it will link to your own neural network. they won't have to "project" the internet and video and GPS visuals over your retina, they will literally appear in your field of vision integrated with your natural sight. the data will be sent to your brain. and this way you won't even need headphones for the MP3 player. when you want to listen to music, you simply "press" play, and suddenly you're hearing the music inside your head as if you were wearing extremely high quality professional headphones.
it's all linked into your own brain's neural network.
seamless.