Don't think Nokia's were data mining previously to WP7. Maybe our N900s sent a SMS when we updated the firmware at one time, (as far as I'm aware mine didn't even do that). Maybe the networks are sucking it all in through their services. I used to get hell and all unsolicited texts when I had my Vodafone branded N95 mostly stuff I'd searched for when using the Vodafone Live portal. Eventually I think STOP was the only suggestion that ever came up from the T9 dictionary. I've probably had 1 every 6 months or less frequent with the N900.