Hungarian notation makes sense if (a) you have to declare all your variables at the top of the function, so you can't see the variable types, and (b) you don't have a code browser that gives you type information when you hover over a symbol. More and more, neither of those are true, so I find Hungarian fairly useless.
We used systems Hungarian notation for LotusScript because older versions of IBM Lotus Domino Designer had limitation (b) along with some other problems. It was actually helpful in understanding and maintaining complex code. But we always understood that we were doing it to work around editor flaws rather than because systems Hungarian notation was a good idea in general.
