Cell buddy is an instant messenger for cellular networks. It uses a variety of sms gateways all around the world, so it is possible to send messages to virtually anyone anywhere! The program is very small and very simple. It has a contact list like other instant messengers, complete with export/import and message archive and it runs in the system tray. The trick is that you need to register on most of the gateway servers to use them. Thankfully, the program tells you how to do it for each server and the server list can be updated. For non-standard gateways there are plug-ins which you can download separately. If you send a lot of sms messages to people around the world this free program can be very useful.