After using zsh for a couple of months I have grown to like it.
Could someone direct me to a site that has the zsh source and Linux diffs ?

I would also be interested in knowing what the differences are between zsh
and ksh ? I have not seen ksh yet though I beleive there is a port for Linux
under way if not already available. 

What is the recomended shell to use with Linux? I know ash is shipped often with Linux root disks but I think it's a bit simple as shells go.

thanks in advance.