NN4+ refers to version 4 of the NETSCAPE
NAVIGATOR browser software and every version
released since. The latest release is version 7.2 and
version 8 is expected during 2005. This was the big one
before Microsoft found the world wide web. One thing is
certain, it's because of these boy's that we're not all
paying £50 for Internet Explorer.
More in-depth information can be found on Wikipedia.
