Steve Litchfield from AllaboutSymbian has posted some essential tricks and tweaks for your new symbian smartphone. Pimping your smartphone sure is fun. Here are my additions to the list:

• If your network doesn’t support 3G, then go to Tools->Settings->Network and change network mode to GSM.
• If your phone has wi-fi, go to Tools->Settings->Connection->WirelessLAN and set its availability to “never”. This gives some significant boost to your battery life.
• My additions to the task list: MWeather, Tasky and S60 Internet Radio (requires wi-fi or unlimited data plan if u plan to use it for long periods)
• Office-related utilities: Quickoffice viewers for Word (buy to unlock editing functions), Powerpoint and Excel files, Adobe PDF reader. Using the BT keyboard with these can make life quite easy when you have to make to quick edits on the go.
• Nanika Metro and Google Maps (needs internet connection) for quick directions.
• My choice of 3rd party software: Profimail, Smartmovie, Papyrus.
• Games: I only need Tetris.