Now available for use by do-it-yourself enthusiasts and professional developers, the new board is called the Arduino Due and is based on an Atmel ARM Cortex-M3 processor-based MCU, also known as the Atmel SAM3 MCU. Because it is still undergoing beta testing within the Arduino community, the cost of the Due to the public has not been set.
The big question is whether it will only be of interest to designers comfortable with doing application development on 32-bit platforms or whether there is enough there to move the large base of hobbyists who have been doing designs with the now familiar 8 bit MCUs.
http://www.embedded.com/electronics-blo ... 2-bit-ARM-