That's a good point. It's definitely not a drawing tool. More of an electronic version of post-it notes and images on a whiteboard. You can "draw" diagrams using shapes and arrows and text, but not freeform. I personally haven't missed freeform drawing.

I work with physicists and circuit designers. To us, "whiteboard" is synonymous with freeform drawing...

I come from the software consulting buble. Post it notes everywhere.

And it's grey. This is in no way a whiteboard, it's a grey wall for post-its.