I'm partial to the STM32 (ARM CORTEX-M3 based uController) line of uControllers, not only for their hardware mul/div instructions, but also for their ability to have the ADC converter continually scanning and pushing to memory its conversion results from a series of analog devices.
Now, it looks like STMicro has a gamer development board
, complete with five ST sensors – a 2-axis roll-and-pitch gyroscope (LPR430AL), a single-axis yaw gyroscope (LY330ALH), a 6-axis geomagnetic module (LSM303DLH),
a pressure sensor (LPS001DL) and a temperature sensor (STLM75). All the sensors and the AHRS algorithm are managed by an on-board STM32 microcontroller. The module, which comprises a 4x4cm evaluation board and all the necessary firmware and software, will be available for volume orders in Q2 2010.
It also runs a sophisticated sensor fusion algorithm
(Attitude Heading Reference System) to provide static and dynamic orientation and inertial measurements.
Here's the iNEMO board