There was a thread on the old BBS (http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1201987469/10) regarding talking to a Nokia handset via F-Bus to send and receive SMS. I have been gradually working through the details and would be happy to work with someone who can contribute to the project. I have so far figured out the electrical connections needed to make a handset work with a Mega 2560 (Low budget SMS terminal « Projects) and I have made a start on the software. Right now I am interested in collaborating with a like-minded person to iron out the software issues and making a usable library. If you have the hardware handy and are interested in helping to debug and the develop the software for this project, please give me a PM or follow up.
If you just want a working library, you will have to be patient.