Does such thing exist similar to this Three 3GB Data Preloaded Sim Card, only one that can be used outside the UK?
e.g. When I go on holiday the data Sim will automatically work in a Mi-Fi unit
http://www.amazon.co.uk/Three-3GB-Data-Preloaded-Card/dp/B004O73WXM/ref=pd_sim_ce_4
If not then can international card be purchased with pre-loaded data, instead of having to get a card with x number of minutes on or that cost so much per MB?
e.g. When I go on holiday the data Sim will automatically work in a Mi-Fi unit
http://www.amazon.co.uk/Three-3GB-Data-Preloaded-Card/dp/B004O73WXM/ref=pd_sim_ce_4
If not then can international card be purchased with pre-loaded data, instead of having to get a card with x number of minutes on or that cost so much per MB?