try also this good and almost unknown site:
http://gsms.se/27935
Offer free WORLDWIDE sms with 160 chars and your cell number as sender, 100% Like sent from your phone. Or, if you want, anonymouse sms.
This site offers also other interesting SMS options.
1. Flash SMS
2. Post-send SMS
3. Phonebook Address
4. SMS sent history
Only one problem, the site is in swedish.
You can use this translator for help you to translate:
http://www.tranexp.com:2000/Translate/result.shtml
You can choose to send SMS with your phone number like sender in options and then clicking on: " Telefoninställningar"
When you register, the site gift you 2 credits for 2 sms, for earn more credits simply you must register on indicated sites in "Samlakrediter"
The pages indicated up appear only after registration