Arduino-Color-LCD is a project mainly written in C++ and JAVA, it's free.
Arduino library for the Nokia Knock-Off color LCD from SparkFun
How to use: Copy the contents of the repository inside arduino/hardware/libraries/ColorLCD. Open the sketch in the "examples" directory for an example. Check ColorLCD.h for a list of public functions.
Have fun!
Note: The Nokia 6100/6610/etc display clones are supposed to use either a Philips PCF8833 controller, or an Epson S1D15G10 controller. I bought my display from eBay and I'm not sure which controller does it use because it doesn't seem to work exactly like one of those two. Maybe the controller itself is a clone. In any case, this is the code that works for me. If it doesn't work for you, contact me.
Information sources: http://www.arduino.cc/playground/S1D15G10NokiaLCD/S1D15G10NokiaLCD http://www.sparkfun.com/datasheets/LCD/S1D15G10D08BE_TM_MF1493_03.pdf http://www.sparkfun.com/tutorial/Nokia%206100%20LCD%20Display%20Driver.pdf
Version 0.2.0 (dev version : February 1, 2010 - present) Current development version. Change log from version 0.1.1:
Version 0.1.1 (dev version: Dec 28, 2009 - January 31, 2010) This is the old development version. Change log from version 0.1:
Version 0.1 (Dec 28, 2009) First release. At the moment, this library allows you to display text, rectangles and bitmaps. Most of the development has been focused on making text output as powerful and simple as possible. It is very similar with using the serial port from the built-in Arduino library.