Not likely to be of wide interest, but we have implemented a simple
interface to the commercial Boom SMS (text message sending) service.
We use this to generate alerts when significant things happen while
automatically bidding on Google Adwords.

http://merjis.com/developers/boomsms

License is LGPL + OCaml linking exception.

Interface: http://resources.merjis.com/developers/boomsms/BoomSMS.html

Read more about the commercial service here.  If you want to test it,
they will give you up to 50 free text messages (if you ask them).

http://sms.boom-sms.co.uk/

Rich.

-- 
Richard Jones, CTO Merjis Ltd.
Merjis - web marketing and technology - http://merjis.com
Team Notepad - intranets and extranets for business - http://team-notepad.com