Hi all, just purchased a new mobile phone through virgin on a monthly contract. When talking to the salesperson, she recommended that I buy pocket wifi when in turkey, to enable me to get online and make calls through what's app wherever I am at a fraction of the cost. She said its a SIM card that you buy, and put into your phone? Does anybody know anything about this, Ie costs, is it worth it and where to buy?! Thanks, I am out for 6 weeks so anything I can save on mobile charges the better.