linuxsms
- A script in Perl to send short messages to GSM phones.
- http://linuxsms.sourceforge.net/

CUTs - Cellphone Unix Terminals
- Enables you to use a normal cellphone as a Unix/Linux terminal from anywhere.
- http://codewar.net/cuts/

bluexmms
- Allows remote control of XMMS using a bluetooth-enabled SonyEricsson mobile phone, assuming you also have a bluetooth-capable laptop/computer.
- http://linuxbrit.co.uk/bluexmms/

gsmlib
- This distribution contains a library to access GSM mobile phones through GSM modems. Features include: modification of phonebooks stored in the mobile phone or on the SIM card, reading and writing of SMS messages stored in the mobile phone, sending a
- http://www.pxh.de/fs/gsmlib/

gnokii
- gnokii (from GNU-Nokia) is a project to develop tools and drivers for Nokia mobile phones for Linux, BSD and other Unixes/operating systems.
- http://gnokii.org/