Mike bought a Samsung Galaxy Tab 10.1, which he discovered can be converted to a phone just by putting a SIM card into it. So he put his AT&T SIM into it and he uses it all the time. Leo says that's interesting!
It's been one of those things that people want to do with their tablets that they haven't been able to do just now. Imagine if the iPad Mini would be able to do that. Apple will never allow that, though. Samsung, on the other hand, is now doing it to separate itself from Apple.