Live Spaces users will have six months to have the option of moving their blogs to WordPress.com. In the light of this alliance or partnership, the WordPress team has created a new importer to ease the pain of moving to the new blogging platform. Also, as a default, new Live Spaces users will automatically use WordPress.com when they create a new blog.
In Messenger Connect, a “Publicize” button enables users to automatically share updates to a WordPress.com blog.
Source: Just Another WordPress Weblog