Released to beta testers earlier today, the MSN Toolbar Roaming Favorites Add-In Beta 1 is Microsoft's first attempt at allowing users to access their internet bookmarks (a.k.a. Favorites) remotely without having to be signed up to the MSN Internet service. Because the MSN Toolbar is free, anyone will be able to install this addition once it's released. The only major requirement is that you have a Microsoft Passport account and the free MSN Toolbar, which anyone can get for free by going to http://memberservices.passport.net/ and http://toolbar.msn.com/

Source: TheHotfix