I can't get any of them to work: [beta.search.msn.com...] and [beta.search.msn.co.uk...] all say "This site is temporarily unavailable, please check back soon."
MSN have already figured out a way to make money without having a soul come to their search engine. It's called Windows. Remember, MSN has the resources Google never did while it was building its company. MSN won't be an infant when it comes out, it will be a level playing field. The subtle differences WE AS WEBMASTERS see in the results will not be apparent to the regular user.
You're joking, right? That's like saying "Now that Rupert Murdoch is trying to get into media" ...
MSN has already made billions out of the search industry, just because it wasn't their technology doesn't mean they weren't in the top five search engines even before they decided to do it themselves.