Are we there yet?

The IEEE Spectrum magazine of February 2008, in an article on 60Ghz silicon transceivers, said:

The electronic devices in our homes and offices will be chattering furiously and wirelessly in another five to 10 years.  Cables will go the way of the buggy whip.

I certainly hope this is true, but today, 22-Feb-2008, I’m wondering if this will be true with another technology like optical instead of electro-mechanical means.