PHILADELPHIA — Comcast Corp. will become the first major cable TV operator to roll out wireless broadband outside of Wi-Fi hotspots as it launches the service in Portland, Ore., on Tuesday, with at least three other cities to follow this year.
Comcast will offer speeds of up to 4 Megabits per second, faster than any other comparable, non-Wi-Fi service currently being marketed. The service is for use with laptops, but not other mobile devices.
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