Specifically referring to the Comcast 250GB limit that has recently come under fire from Netflix and others now that its Xfinity TV app on Xbox 360 skirts the cap entirely, Aragon noted cable companies have the pipe and the bandwidth and can restrict competing services.

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Comcast has a data cap of 250 GB for its cable modem customers and a number of ISPs are limiting the amount of data you can use every month.

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Cable and Wireless said it was already in the process of testing a bill cap for roaming data that should be available later this year.

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