How to interface with a mobile phone LCD?
How could I interface with this LCD with an AVR microcontroller?


Mobile phone manufacturers do not usually release information about the hardware they use. The first step would be looking if it has a controller on-board. Without a controller board you can't use the LCD, an Arduino can't handle being a controller. If it has a controller you have to update your post with pictures of the screen then we can help you a bit more.


  Also, why are there articles on websites showing only interfacing of Nokia LCD?


Nokia LCD's are easy to interface with, they're cheap and really good quality that's why they're popular that means there are more websites showing how to use them. As a beginner it is a good idea to use popular things, people can then help more.