This appears to be it
<http://www.squeaksource.com/Bob.html>

Ken G. Brown

At 5:04 PM -0600 3/6/10, Ralph Johnson apparently wrote:
>if you really want it, it is there,
>
>
>I was thinking that Bob was not generally available.  I'm glad to be wrong.  I googled a bit and couldn't find it.  Can you please tell me where to find it?
>
>-Ralph