So today, while checking my hotmail, I made the same mistake I always do of typing in live.ie instead of hotmail.com (both my tb msn, and rl msn are @live.ie). However, rather than bringing me to the usual boring live homepage, it showed microsoft's newest version of msn search, now called bing.
As far as UI goes, it's actually pretty nice. I haven't done much searches so I can't say much for accuracy there.
Now as soon as they get a coherent unified strategy, and sort out the passport, microsoft.net, MSN, Hotmail, Windows Live, Live, and now Bing branding mess, they could actually become google's first solid competitor since Yahoo was relevant.