sure they did. Everybody knows about all other crappy closed services. Which I don't use and everybody look at me like I'm a weirdo. But on the other hand, at least no one bothers me all the time. My wife uses all those things and her phone is beeping all the time. I would go nuts in 3 days.
After all, if any of those services work so does the phone. Call me if you need me. Or send the SMS. They are mostly free and unlimited here.