Using Windows 7, and I've been using NS for a few weeks (after clean NRT removal of previous NIS and new install of NS).
I just got the update to the latest NS version 2.5.4.24 yesterday. I happened to notice a couple of oddities. The new desktop icon for the new version was no longer named "Norton Security", but was named "Norton Internet Security." Likewise, when I click on Windows Start menu and go to "All Programs", the folder is listed as "Norton Security", but when I open the list of subtabs, it is called "Norton Internet Security." Before yesterday, the subtab had also said "Norton Security", i.e., it was consistent.
So at least for me, somehow the term "Norton Internet Security" has reappeared in at least a couple of places since the latest update. It doesn't seem to be of any significance that I've discovered, however. When I click the Norton Internet Security icon it does launch my Norton Security. Or when I open it from the Start menu> All Programs>Norton Security> then the "Norton Internet Security" subtab, it also launches Norton Security.