The new version of cobex, v0.2.11, now properly handles national charatcers in all filenames.
Version 0.2.10 of cobex is just released. This time I've added a new tool, cobex_mkdir, to create new folders on your Obex capable SonyEricsson phone, and possibly other devices.
This is v0.1 of my teensy-weensy implementation of obex-over-cable. With it you can upload images and midifiles (polyphonic ringsignals) to a SonyEricsson T3x0 phone, and possibly others, over a serial cable.