WordPress is going to make live Twenty Ten live with the release of WordPress 3.0, though you can still get a glimpse of Twenty ten theme on your self hosted WordPress blog by using WordPress 3.0 Rc1.
For people who are looking forward to use Twenty ten theme on their blog, they will find this video by Steve Burner, where he is sharing tips to change and tweak Twenty ten WordPress theme.
This is very useful for non-coders. Though this video length is almost 1hr+ long so you might like to skip some intro part, if you keeping a track of latest WordPress news.
Do let us know if you are planning to use Default WordPress theme on your blog or you planning to use some different theme on your blog.