Simple Post Preview is a multi-instance widget that creates pushes for posts.
There aren't many ways to set it up, but here is a small tutorial Title: You can choose to write a header. If you don't, the title of the post will be used as the header instead Select a post or a category: Select a category from which you want do display the latest post. This will update automatically when you create new content. If you want a static push for a specific post, select a post instead. Use: Choose if you want to use the content or excerpt text in your push. Thumbnail: Select this if you want to show the post thumbnail in the push Thumbnail size: The name of the thumbnail size you want to use. Updates when you upload an image. Length in characters: The number of characters displayed from the content or excerpt. -1 will hide the content and 0 will show all. Link: The name of the link that takes you to the full post Link to: You can choose to link to either the post or the category