I guess I always found the way traditional spreadsheets address cells very clumsy, especially with hidden formulas, and I enjoy inventing new ways of programming :) I can't claim this is better yet, since I haven't used it that much. I like the visible formulas as a programmer, but I could imagine others don't.
I see why you don't want to worry about addressing cells, it would kill a lot of the utility of the program.
What are the tradeoffs in your mind?