The problem is where to send the message, a normal person does not have access to a message gateway this would be needed to transfer the message to the cell service.
Maybe you could use a company like
http://www.smsglobal.com/en-au/ or the other easier solution would be to e-mail the output and you set the phone up to access e-mails.
i also have a script that sends tweets to a twitter account that you could access via the phone.