The team at Umbraco HQ have been working flatout to bring us a version of Umbraco 5 (Beta) to download and play with just before the festive break! So far it looks exactly the same to us from the admin users point of view. The majority of the changes are behind the scenes, where it is now using technologies like MVC, LINQ, RAZOR to make the magic happen.
Check out an introduction screencast where Alex Norcliffe takes us through installing Umbraco 5, and Matt Brailsford takes us through editing templates in the new Umbraco 5.
Installing Umbraco 5
Editing Templates in Umbraco 5