WATERLOO, Canada (SEND2PRESS NEWSWIRE) — RoweBots Inc., the leading supplier of tiny embedded Linux RTOS products, today announced the launch and release of Unison, Version 4 for ARM Cortex-M3 processors. This ultra-tiny embedded-Linux compatible RTOS opens Texas Instruments Incorporated’s (TI) Stellaris microcontroller (MCU) families to Linux and POSIX compatible development for the first time.