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In our post about Foursquare for Business last week, we mentioned that Foursquare recently closed a round of funding. Today, CNET reports that one of the angel investors in that round was none other than Twitter inventor and chairman Jack Dorsey.
Earlier this month, we also reported that Dorsey is working on a new project that focuses on the "three concepts (of Twitter): immediacy, transparency and approachability.”
Dorsey's investment with Foursquare is personal and not on behalf of Twitter, but his involvement with both companies might raise some questions as Twitter enters the geolocation arena themselves with the upcoming launch of their location APIs.