If its stable, works (I only require the very basics of a ss) and loads noticeably faster than gnumeric then great! Give it to me!

Yes it's old, so what? I still use xmms as my only music player on all my Linux boxes and god knows when that was last updated. I've yet to try any Tcl/Tk apps out on the Z but I'd be surprised if they took as long to load as GTK2 apps do.