This is our latest UAV Development Board (UDB4, as in, "UAV Development Board version 4"). The UDB4 comes populated with a dsPIC33FJ256 CPU, an MMA7361 three axis accelerometer, a dual axis IDG500 gyro, and a single axis ISZ500 gyro. The on-board Invensense gyros even have enough vibration tolerance to be used in RC heli applications. Project description, more information and ordering can be found at https://www.sparkfun.com/products/11115 Datasheet: http://www.sparkfun.com/datasheets/Components/General/MMA7361L.pdf Datasheet: http://www.sparkfun.com/datasheets/Components/SMD/Datasheet_IDG500.pdf Datasheet: http://invensense.com/mems/gyro/documents/ps-isz-0500b-00-06.pdf MatrixPilot Code: http://code.google.com/p/gentlenav/source/browse/#svn/trunk/MatrixPilot DIYDrones UDB Page: http://www.diydrones.com/page/uav-devboard DIYDrones UDB Article: http://www.diydrones.com/profiles/blogs/sustained-rotations-pushing