Here's what I do:
1. Create a contact with the text of the message in the field "first name" and any digit as mobile phone;
2. Sync;
3. In SMSd, I choose new message, insert as contact the message to send, delete the phone number and send the message.
4. Delete the contact and sync again.
Is there any way to do it differently? In particular, is it possible to send a note as a SMS (in which case, I could use for instance Megaphone to create the notes in the computer)?