I saw a crew using tablets instead of blueprints and it got me thinking

Last week, I walked by a construction site on my way to work. The crew was using tablets to look at plans instead of paper blueprints. I always thought blueprints were the standard, so this surprised me. They were tapping on screens and sharing notes instantly. It made me wonder if this is how all jobs are done now. Has anyone worked with this kind of tech? I'd like to hear if it really helps or if it's just more stuff to break.