GrandCentral co-founder back at the VoIP drawing board?

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The founder of GrandCentral--which eventually became Google Voice--apparently is back in his old stomping grounds. Craig Walker, who sold the VoIP technology to Google (Nasdaq: GOOG) for some $50 million back in 2007 recently tweeted that he was "Starting to play around with a bunch of VoIP ideas...time to take this incubator thing into hyperdrive :)."

Walker, who ended up working for Google, then Google Ventures, founded incubator Firespotter Labs--which is funded by Google Ventures and includes several of his Grand Central team members--last May.

As TechCrunch asks: "Is Walker developing Grand Central 2.0?"

For more:
- see this TechCrunch article

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