herr doktor,
although telcos have been collecting similar info, it took a court order to access it. in other words, for the mere mortal, that information was unaccessible and purely theoretical. now if someone steals your phone or gets access to your home computer, they can get all this data. not so theoretical all of a sudden.
i think the main reason for all this indignation is that it was a surprise. researchers accidentally discovered this, apple obviously didn't mean for this to be widely known. people feel duped. i have no idea how consumers would have reacted if this functionality was made known from the outset, i suspect they would have protested... pointing to the fact that maybe this isn't such a good idea.
conspiracy theorists have put forth the idea that apple did this at the request of The Government. personally, i think apple did this because they could. they're in the data business. google has made a mint by "collecting information first, find use for it later". speaking of google, they got in trouble a while back for exactly this: a stink was raised over the google maps vans that collected information about wireless networks as they mapped and photographed streets. t'was the same thing: they were sucking in all the data they could collect, figuring that some day they'll figure out how to use it (read: monetize it).