While Comcast only currently has usage caps in a handful (but slowly expanding) of mostly uncompetitive Southern trial markets, Phil Dampier at Stop the Cap notes that Comcast's website now features a link in all of the company's markets warning customers that "an Xfinity data usage plan may apply." The link now appears when customers click on the "learn more" hyperlink at the bottom of each of the company's speed offerings.

While Comcast has made it clear they'd love to expand their usage caps into new markets, the change is likely due to the fact that Comcast is facing regulatory review of their acquisition of Time Warner Cable, and wants to make sure the fact they have usage limits is clear to all users.

That, or they're slowly but surely "educating" customers in all markets that limits may exist at some point.

Previously, Comcast has tried to argue that these markets don't have usage caps -- they have "data thresholds."

As it stands, Comcast only caps usage in the Huntsville and Mobile, Alabama; Tucson, Arizona; Atlanta, Augusta and Savannah, Georgia; Central Kentucky; Maine; Jackson, Mississippi; Knoxville, Nashville and Memphis, Tennessee; and Charleston, South Carolina markets. In most of these markets users face a 300 GB usage limit, with $10 per each additional 50 GB overage fees.