Cable company Comcast Corp. (Nasdaq: CMCSA, CMCSK) has become the first of Clearwire LLC (Nasdaq: CLWR)'s partners to launch a service piggybacking on the carrier's mobile WiMax platform in Portland, Ore.

Comcast today unveiled its first "High-Speed 2go" market, saying that it kicks off the nationwide launch of the offering, which will offer a choice of broadband wired or wireless connectivity to potential customers. (See Comcast Boots Up 'High-Speed 2go'...)