Traffic on the go

Rand McNally has just introduced a new mobile traffic reporting product for cell phones. It currently runs on Sprint PCS and AT&T Wireless as well as a few other carriers, and offers traffic and weather information for 90 US cities.

I'm still waiting for a simple, free traffic alerts service that can SMS me or send an alert to a SPOT device based on a route that I predefine. It looks like this may be able to do that, although $4/month is a lot for convenience of just this one particular piece of information.