ISPF of IBM in UNIX

[aditya at viking.cs.uh.edu]

I would like to know if there is an editor in UNIX which is 
similar to ISPF editor that is available on IBM. If there is
such an editor, I would, also, like to know from which vendor
this editor is available. So, If anyone can give me the above
information I will be gratefull. I need this urgently. Please
mail your answers to me directly.

Thanks in advance.

aditya
aditya at cs.uh.edu