MobileFTPd is a freeware application for Sony Ericsson UIQ3 based Smartphones that allows your mobile device to act as an FTP server. You can specify the server name, username and password to be used and the local directory containing files to be shared. Then connect from your desktop computer using an FTP client such as FileZilla and download files through a WiFI/WLAN connection or Internet through your mobile phone’s GPRS/3G Internet Connection.

Currently, only Active Mode is supported for downloads.

Download here