A convergência da rádio-satélite como exemplo a seguir

A rádio hertziana devia pôr os olhos neste exemplo:

"When Sirius Satellite Radio and XM Satellite Radio first introduced their subscription audio services, both companies expected success to come primarily from the automobile market. As most radio listening is done in the car, the two companies worked to sew up exclusive licensing deals with major car manufacturers.

But in the four years since satellite radio began, new technologies are making additional demands on listeners' time and dollars.

Today, satellite radio is competing not just with broadcast radio in the car, but also with MP3 players, which can hold thousands of songs and can be hooked up to car stereo systems. And unlike bulky satellite radio receivers, pocket-size MP3 players can be carried everywhere and are useful in the gym.

To compete with portable music devices, both XM and Sirius have had to start offering their programming over a range of devices and services. Both companies charge $12.95 a month for their programming, and discounted multiyear contracts are available.

In addition to the service in cars, consumers can now hear Sirius channels on the Dish Network [um conglomerado de empresas com a tv por cabo no centro das operações] and on Sprint cellphones. XM can be heard by AOL subscribers, on AirTran and JetBlue flights and on DirecTV [basicamente TV por cabo mas muitos outros serviços] 

"We want to make our service available over as many products as possible," said Robert Law, senior vice president of Sirius's consumer electronics division.

For now, standard radios and MP3 players still have the edge on easy music delivery. Broadcast radios are cheap and are incorporated into virtually every home stereo system, while satellite radio tuners are mostly stand-alone devices. And satellite signals cannot be received without a special antenna. "(in New York Times, 12, Janeiro de 2006, "Satellite Radio Leaves the Car to Go Home and on Walks", By ERIC A. TAUB)