I was wondering, do I need to have 32bit libraries in my system, if I want only 64bit apps to exist.
I am asking as I am unaware of this issue in Linux architecture.

I want to have a 100% 64bit system. If I want an app, that is not available in 64bit,
guess I will look for some other app from the sane category. If none exist, then wait till
one will be available.

The only thing that I think I'll keep 32bit, is w32codecs pack, as I have seen it only in 32bit,
and I really need those for movie viewing.

Also, what is the difference between x586 adn x686 packages or source files?