V.R.C.C. (Video Remote Computer Camera) is a freeware and open source system that enables your symbian smartphone to be used as a Webcam and lets you control the smartphone from the PC.
The system is comprised of two applications, one for the smartphone and one for the PC that communicate using a protocol over a variety of data transmission methods. Currently the only phones with UIQ3 interface are supported
Free Download: V.R.C.C. v1.2 - Symbian OS + PC binary's (server + client)