It's cheating if you don't say you're using it.

At some point I assume that it’ll be so normal that you’ll almost have to say when you’re not using it.

I don’t need to say that I’m using a text editor, instead of hole punched cards. It’s also quite common to use an IDE instead of a text editor these days in coding interviews. When I was a student I remember teachers saying that they considered an IDE as cheating since they wanted to test our ability to remember syntax and to keep a mental picture of our code in our heads.