Great questions. I'll be publishing a document to dev.twitter.com about this
in the next couple of days but to answer you question the attributes you
refer to are specific to a registered OAuth application. I'll explain more
about these attributes and where they come from in the dev.twitter
For example:
Place lookup for Portland, OR:
http://api.twitter.com/1/geo/id/ac88a4f17a51c7fc.json
Returns as part of the result:
attributes:{162772:pop100:529121,162772:place_id:4159000}
What does the 162772 signify? I believe the 162772:pop100
represents population from 2000 census (I'm
