I first saw this new ToughBook back in September when Panasonic invited me out to its facility in Wales. Even now, this is still a pre-production unit, rather than a full retail sample, but it's pretty close to the final build. Like the ToughBook CF-W4 before it, the CF-W5 is an ultra-portable semi-rugged notebook - so you're not going to be throwing it onto the ground, standing on it and dousing it in water, like you would a ToughBook CF-29! But that's not what this little notebook is all about, the CF-W5 is designed to be thin, light and durable enough to withstand the daily grind.