That's the interesting thing about this type of predicting: they usually fail to account for certain technologies being pushed out by others. You probably won't send a fax because faxing is nearly obsolete. Everyone uses email instead. And you probably will use your tablet to send email.

It's the same as with the phone booth. The same technology that lets the guy send a fax from the beach allows him to make calls from almost anywhere, (even video conferencing if you have an Evo or similar phone) pushing the phone booth out of common use. And, when everyone has a computer with an internet connection, why would someone have to go to a cash machine to buy concert tickets?

It is almost impossible to get everything right, and if there are certain key technologies that aren't predicted correctly (like desktop computers, high-bandwidth cell signals, internet everywhere, etc), then it has a cascading effect of invalidating many of the other predictions.