It is possible that was what they meant, or was a freudian slip. A more charitable interpretation is that the "our" in "our models" encompasses a different subs

It is possible that was what they meant, or was a freudian slip. A more charitable interpretation is that the "our" in "our models" encompasses a different subset of people than the "our" of "our phones". So it could been written "we attach a little bit more data to [Foursquare's] models about how those places look [users'] phones out in the real world". The latter replacement of "our" would assume that foursquare employees are also users of foursquare apps (which seems fairly reasonable). But, if that's what they intended to say, it was somewhat ambiguously worded.