Organizing plugins

I remember browsing an article once somewhere which said that it's possible to relocate the plugins/features directory away from the Eclipse installation directory (which would simplify upgrading the core Eclipse).
What's your opinion on this?
Have you used this feature?
Do the authors have something to say about this?
And finally, if someone recognizes the article and has a link to it, please feel free to post it

Maybe you are thinking of Put Eclipse features to work for you or Keeping up to date?
-- Dan

Yep. The first one.
Thanks for the link!