From Hamsterworks Wiki!
The TI Stellaris Launchpad is a low cost Dev Board / Evaluation Kit based around a LM4F150H5QR controller.
- 80MHz 32 bit ARM Cortex-M4 with floating point
- 256KB Flash / 32KB SRAM / 2KB EEPROM
- Dual 12-bit ADC, 6x64-bit and 6x32-bit timers
- Lots of serial comms.
It is sort of like an alternative for Arduino. The ability to do In Circuit Debugging over the USB cable is great.
I'm thinking it would make a good I/O expander for the Raspberry Pi.