it's pretty cool to see people working on the usability of things by trying radical new approaches. makes me happy. makes me smile in side. makes me happy, all of them time. (errrr.. or is that red, red wine?)
in any case, in the aim for simplicity just don't forget to be concise, explicit and ergonomic. some of the calcs use a lot of vertical space. all are very opaque as to what they support or can do (hey, hey it's the CLI!). and the ergonomy of doing "**" is questionable =)
i know, it's all just exploration and fun and half-joking. but it's still cool to watch it go down. cookies for all.