Hacker News Reader

Open Office != OpenOffice.org, AFAIK the trademark for Open Office is held by some one other than OO.org

You're technically correct - just like the the 'Linux is a kernel' people are also technically correct.

However most people refer to 'OpenOffice' meaning OpenOffice.org, in the same way they refer to 'Linux' and mean a Linux-based OS.

Open Office = Microsoft Office thats openly sold to the public.