Traveling around the world I needed a small footprint laptop. The nb100 came to mind because of its price and size.
I checked a lot of other machines but liked the keyboard and the touch pad which wasn't bad. The in built web cam works well with skype messenger etc.
I paid a little extra money (25 pounds) to double the available memory which made a huge difference and really i worth it.
I have also used the unit with an external keyboard and monitor which turns the unit literally into a portable office.
Negative aspects- the keyboard is little difficult to read in low light conditions. The battery seems to be inconstant lasting sometimes for an hour sometimes for 3 hours but it gives plenty of warning and the charger is very small.
Bottom line if you want a really small light useful laptop that can be used as a portable office and you want a well known manufacturer then the NB 100 is a good choice. I run office applications and several online tools using it no problem. Good price and simply does the job