If there's no objection, I'm going to switch the URL redirecting around tomorrow, so that www.wikipedia.org/* points to en.wikipedia.org/* rather than the other way 'round. A new intro page can later be set up at convenience.
I object strenuously. This is not a slam-dunk good idea at all. Please hold off at least a good while before doing this.
I really hate saying this, but, um, I'm with Cunc here. I also think it's a really bad idea to have www.wikipedia.org be anything but the most direct route to the front page of the English Wikipedia. Like it or not, that's where the action is. As long as the front page continues to have links to the foreign wikis, I see no need to waste the time of 90% of our users with a pointless "intro" page.