WordPress remains one of the most popular blogging platforms online.
Most bloggers at times have realized that they have deleted posts by accident.
WordPress has been working on enhancing the capability of this platform to provide enough backup solutions.
WordPress already comes with revision feature that can save the various versions of your blog posts.
They are going to include Trash functionality in the next update (WordPress 2.9).
Trash would keep a copy of all the posts or pages you delete for a certain period. You would be able to restore the content in case you deleted them by mistake.