As I mentioned in a previous post, WordPress 2.9 has been declared feature frozen with the exception of three different features. These are oEmbeds, Post Thumbnails, and the new media user interface. This week, two of those features have been written about in more detail. First up, WPEngineer.com has dived into a newly added function called the_post_image() which will be the foundation of the post thumbnail feature. Meanwhile, Viper007bond has written a detailed article behind the oEmbed feature he has been developing to include into the core of WordPress 2.9. In a nutshell, oEmbeds will make it easier to embed remote content such as videos into your site.
Worthy reads if you want to know a little more information regarding two of the major features planned for the next version of WordPress.