Hear Hear! I would rather use a Chromebook for casual and on the go usage than anything else. Carrying around a full fat laptop with all your data on it nowadays just feels overkill. Not to mention a bloody liability if you lose or break it.
I often think the negativity to ChromeOS is either from those that have never dared to actually sit down with a Chromebook only to find to their horror it actually does 90% of what they need to do in most cases. Or IT Support guys that fear their career is over if it really caught on.