>>Most of the US cell phone providers offer a (free) method for emailing (through SMTP) messages to a cellphone (http://www.notepage.net/smtp.htm). I am using this and it works good, but it is not SMS.
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>>Does anyone have SMS built into their apps?
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>>Google has an SMS option for their calendar to get reminded and I want to find out id it is some thing I can do (and if I can do it for free)
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>>Any links or references on the topic would be appreciated.
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>>Thanks,
>>Einar
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>I have just finished an SMS Texting app for a client, and it is an expensive proposition to do if you want control over what is happening. You must use a content aggregator and then be approved by each of the carriers you will be using to carry the SMS messages. If you google FREE SMS Gateways, you will find a few that will permit you to send them, but you get what you pay for.

Is there a SMS Gateway to supports all cell phone carriers in the world?