Fiber will not become obsolete. HTC Bluewave is designed to be updated to take advantage of new technologies as they are developed. The glass fibers that carry pulses of light have virtually infinite capacity: a single strand of fiber transmitting multiple frequencies of light could conceivably carry all the phone traffic for the entire planet. With new technologies being developed, the capacity is almost unimaginable.
Fiber optics will enable new technologies such as high-speed wireless services for decades to come.