Would this method work for bulks sms sending?

Hi

Would this method work for bulk sms sending

1. You download the sms caster here

http://www.smscaster.com/productsmscaster.htm

2. You get a simm from t-mobile and pay 10.00 and they say you get unlimited text from here (At the top)

http://support.t-mobile.co.uk/help-and-support/index?page=home&cat=BOOSTERS&pcateg=HELPANDADVICE

Would this be a good way to do bulk sms?

Any input would be good