Seems like alot of work to save a few bucks. I have Verizon that charges $10 a day when in jamaica to use all my same phone amenities that I have at home (unlimited text, talk and data). I know that $10/day of usage isn't cheap but by the time you go thru all the costs of getting a 'throw away cell', sim card and then paying for time of use (which is usually limited) it doesn't seem worth it.