Telcos have completely revised their proposals for tablets and connected objects. So a few weeks ago, my mother had received an additional sim card for its 3G devices.
Being already equipped (tablet, smartphone, ...), I decided to offer her this little device that allows him to connect on the go. It's convenient and easy to use (1) the SIM card is placed (2) we connect to the wifi network created with the identifiers provided. No setup required (but optional).
Most importantly, the price is very competitive compared to the offers in this segment of operators (often sold with bare subscription and prohibitive price (30 to 40% higher).