Was initially hopeful that this would rather than have A..B..C... and 1..2..3... for columns and rows would instead have one creating categories à la Javelin/Lotus Improv/Quantrix/Flexisheet --- give me that, and have a dynamic system for displaying a pane of formulae and one would have a _very_ nice tool.
Huh, I haven't thought about that yet, but I like it. I opened an issue to track this: https://github.com/garritfra/cell/issues/11
I'd have to look into the tools you mentioned to really understand all the details. Thanks!