marklit

require 'twitter'

Twitter::Search.new.geocode(39.037, -94.5874, '5mi').fetch().results
        #=> all tweets within 5 miles of lat/lon

Twitter::Search.geocode(39.037, -94.5874, '5mi').fetch().results.first
        #=> most recent tweet within 5 miles of lat/lon

Twitter::Search.new('dinner').geocode(39.037, -94.5874, '5mi').fetch().results
        #=> all tweets containing the word 'dinner' within 5 miles of lat/lon