This method I found it by myself, it frees a little about 100~200 KB but I guess it's useful sometime
Close your menu not by selecting the right selection key "exit", or pressing the menu key another time, they only hide the menu app but do not close it, to close it select the left selection key "option" and scroll down and select "exit"
So when you open an app needs more ram reopen menu and close it, it's useful when play low bit rate video in realplayer paradis.
SmartCam let you turn a Symbian Series 60 phone with bluetooth and camera into a handy webcam ready to use with your PC.
Just install the program in Windows XP or Vista and install the client to your smartphone (be sure to follow the readme in the \win\installer directory). When it's all set up, your SmartCam works with Yahoo Messenger and most other video chat services, meaning that if your computer doesn't have a webcam but you've got Bluetooth and a Symbian smartphone, you're in luck. SmartCam is a free download, Windows only.