I use Lightroom on an Asus netbook and while not the speediest thing in the world it works great for me. I don't mind giving up the processing power for the portability of a netbook when traveling. The other nice thing is having a place to store all your photos on long trips when you run out of memory card space
If there is anything specific you want to know let me know and I'll be glad to answer (if I can
).
John