Agreed. I think originally, it would have been more accurate to say IE was based on Mosaic. If I recall correctly, I think Microsoft bought out Spyglass Mosaic to base IE on, and that browser had been licensed from the NCSA. Netscape on the other hand had originally been Mosaic Communications(anyone remember home.mcom.com?) and changed the name when they did the clean rewrite. I think the name Mozilla came about because they were looking for a 'Mosaic Killer' or something along those lines. Memories are kind of fuzzy so I'm sure someone on here has a better recollection.