Anonymous spamage. (Score 1)

Most spam you recieve on your phones in the US comes through the company's website (i.e. nextel.com, cingular.com, vtext.com) --- These, of course are logged.. the IP addresses are logged. Unfortunately its most likely either someone out of the country or someone behind a proxy. A solution would have to be done more in the idea of limiting the amount of messages from a given IP address, etc. Since most cellular companies can make money each time a phone goes over its amount of messages, they probably just won't stop it until its gotten out of hand and starts creating a customer loss for the company.