I wish I could remember the name, but there was a demo of an experimental IDE for phones and building up blocks of odd shapes and directions that fit together like a stone wall. It wasn’t Scratch based. I think it was declarative rather than procedural.

Meanwhile, I also hold out hope for coding in VR. http://primitive.io is currently on top of https://www.reddit.com/r/HMDprogramming/ But, that subreddit doesn’t get much action.