SMS notification for free
Like others in this forum I'm not amused by the new SMS pay per month model. Clear that they need to earn money but I don't think it's the appropriate model for this community.
However making use of IFTTT.com does the same for you, but for free (at least in the US and for some other providers worldwide). Simply make twine to send a mail to IFTTT and create a receipt launching a SMS.