Location-based ad startup Placecast has added $3 million in additional funding. The company says it will use the cash to expand its ‘ShopAlerts’ service, which sends people promotional text messages when they’re near a specific retail location. (It’s all opt-in). This is a double hot space—with both Google (NSDQ: GOOG) and Apple (NSDQ: AAPL) buying up mobile ad networks and with ‘location’ seemingly replacing ‘real-time’ as the buzz word du jour.

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And indeed, in its announcement, Placecast takes the highly unusual step of mentioning a specific company that theoretically could be interested in acquiring it. Talk about chutzpah! (From the e-mail a representative sent us: “The 451 Group’s mobile analyst, Thomas Rasmussen believes the next mobile ad M&A will happen with a location twist. He predicts someone like Nokia (NYSE: NOK) will want to buy a company like Placecast.”)