It could be nice... sometimes, you end up "previewing" your code by displaying it in order to get it to look ok. It could be easier to jus see it while writing the script.
On the other hand, I also want to see code in the current format most of the time. I agree that if it's optional, it would be helpful.
As far as that syntax highlighting idea... I never did like that in C++, VB, various HTML editors, etc.
And code completion would get in my way. I don't have a problem if it's there, but I type faster if I don't have to use code completion.
