Smart phones are being spread between people like fire in a hay barn!
http://www.allaboutsymbian.com/ is more like a news site for the Symbian operating system (A very famous operating system for mobile phones running on mobile devices from different manufacturers such as Nokia, Sony Ericsson, and others).
It also has links for developement websites, you can access them by clicking "Developer" link on the menubar.
It also contains useful forums with various subjects. A section for reviews, and other useful links.
You have to give it a visit :)