It's great to be able to draw shapes as for technical diagrams, but it's really hard to get a lot of use out of it if I cannot label the boxes. Please consider adding text inside shapes. It's also very useful to be able to attach text to lines or arrows.

I would be using this to describe software architectures, data flows, etc.

(I was not prompted for a suggestion form, so I had to use the bug report form. Please route as appropriate.)