iPhone... everybody had a phone
iWatch... everybody had a watch
putting glasses to see a movie in 3D... flop
So, HiTec wanna play with our senses... that's their sense of the future...
Apple thinks this niche product will serve a gazillion of niche interests, we'll see.
Well... someone has to try to see if it works. And as with many ideas, it needs time to get fully developed and ready for use. Rushing it can result in a product that simply isn't ready. Just take a look at EO (AT&T).