I just recently found this nice little open source tool called "floAt Mobile Agent". This cool toy enables you to manage your mobile on your computer - using your mouse and a real keyboard.
You can connect a sony ericcson phone via bluetooth or irda (or wire...) and manage contacts, messages, profiles, organizer, everything.
Actually, I won't have my T610 much longer, but if you've got a sony ericsson mobile, get yourself a blootooth adaptor and check this our - it's fun!
floAt Mobile Agent
cheers,
Marc