After lot of coding, I can say that this phone is fully supported. All basic services should work in my Gammu branch and changes should be soon merged to official branch.
So what works?
- Phonebook with most of entries (no picture, voice commands and ringtones)
- Calendar
- Todo
- SMS
- Filesystem
- Various information, including detailed filesystem status and battery temperature ;-)
If you're using original Sony-Ericsson cable, try following configuration, and send me gammulog, if anything goes wrong:
[gammu]
connection = at
port = /dev/ttyACM0
logfile = gammulog
logformat = textall
Branch links are available at http://cihar.com/gammu/, you can directly download from http://dl.cihar.com/gammu/snapshot/.
Update: All needed changes had been merged in 1.09.00 release, so you don't have to care about development versions.