The problem, known as the “spectrum crunch,” threatens to increase the number of dropped calls, slow down data speeds and raise customers’ prices. It will also whittle down the nation’s number of wireless carriers and create a deeper financial divide between those companies that have capacity and those that don’t.

Wireless spectrum — the invisible infrastructure over which all wireless transmissions travel — is a finite resource. When, exactly, we’ll hit the wall is the subject of intense debate, but almost everyone in the industry agrees that a crunch is coming.

via Spectrum Crunch: The cell phone industry hits its limits – Feb. 21, 2012.