Using cloud computing technology, this website allows everyone to send Free SMS worldwide! No Registration required. 1) Go to http://for-ever.us/ 2) Type in the recipient's number (international format - country code followed by mobile number), your message, verification code and click Send!
3) Your recipient will receive the SMS almost instantly.
The recipient will not know who sent the SMS so it might be a good idea to state who you are in your message :)