Clearwire Chief Strategy Officer Scott Richardson today laid out Clearwire’s plans to migrate from DSL/cable modem replacement service to a truly mobile service that would support full mobility and multiple consumer devices.

Delivering the closing keynote at FierceMarkets, Richardson it’s a misconception to think of Clearwire as a pure fixed wireless company. As WiMAX devices become available and as prime vendor Motorola transitions from its NextNet proprietary gear to a standardized Mobile WiMAX platform, Clearwire’s network will transition from fixed/nomadic access to full mobility.

“People consider us an alternative to cable or DSL, but we will support mobile devices,” Richardson said. “We’re on our way, and we’re leading the mobile Internet charge.”

Right now, Clearwire is dependent on the residential gateway modems it sells to its customers through retail channels, but then again there are no embedded devices or even wireless data cards in the market supporting WiMAX. Richardson said Clearwire expects the first data cards to hit the market in the third or fourth quarter followed by the first laptops with WiMAX chips in 2008 with the first mobile handsets and connected devices following shortly.

Richardson also revealed some of Clearwire’s operating numbers. In the markets where it has launched service more than a year ago, it has achieved 10% penetration in 18 or 67% of them. Also Richardson said that of its new subscribers 40% are coming from cable and 29% are coming from DSL as opposed to only 27% coming from dial-up, meaning Clearwire is actively taking customers from the traditional broadband providers.