I'm curious as to why you haven't replaced it with something with better performance. It just seems masochistic to use a netbook with such a pathetic amount of RAM on it as your main computer.
More seriously, both personal and economic issues make this a reasonable tradeoff for me. I assure you it has nothing of masochistic, though maybe it has a stoic streak.
edit: Again, to not derail the point, Firefox works great, even multitasking, in a low-powered netbook.
