I have become a fan of netbooks.
At work, we looked at the people who have laptops and what they do with them, and over 70% were for occasional presentations. We are replacing most of the laptops at work with a desktop and a netbook.
Between our finding that the cost of a desktop and a netbook is still significantly less than a standard 'desktop grade' laptop, and that desktops last a year longer in replacement cycle, we are looking at significant savings.
I am also purchasing four units for my department (Office of Emergency Management) because I can keep them in my truck and hand them out at a scene, and if they get dropped or damaged, it's not a big deal vs. destroying a $1500 Latitude 630.
They also last a very long time on a charge, also important for field ops.
Most of what we do in the field is accessing web apps like WebEOC, searching for hazmat information, pulling up Google Maps or Google Earth, or using basic Office programs (Outlook, Word, Excel).
It also runs fit testing software easily, runs personnel accountability software well, etc.
All in all, quite nice for the uses described.