Great value, seems like they are worth the wait. A bit limited code wise, only 2KB of flash and 128B of RAM.
I'm hoping to be able to squeeze 1-wire bus code to read a DS1820 as well as some LCD driver code in there to do a small cheap temperature controller.
The default tools look windows only, but there are a number of guides around for how to put together a Linux based toolchain for the MSP430. Unfortunately they all rely on building the toolchain from sources.
The best one looks to be the one at HAD:
But there is a major shortcut. Someone has packaged mspgcc4 for Ubuntu.
It is slightly old, but works fine on 10.04
echo "deb http://ppa.launchpad.net/adamhorden/msp430/ubuntu karmic main" > /etc/apt/sources.list.d/msp430.list sudo apt-get update sudo apt-get install msp430-gcc msp430-gdb msp430-binutils msp430-libc
I still had to download and compile mspdubug but that was quick and easy.
The LED blink example in the HAD article worked first go.