Uh...if we are going to be pedantic then all of these IM programs are copies of ICQ. And yes, ICQ had a beta enterprise version before it got acquired by AOL.

And didn't Lotus create an enterprise IM client years ago, as well?

All this argument about "copying" is a bit pointless isn't it - it's about continuous improvement.  And like it or not, Microsoft
does a pretty good job of it.

Cool