Nick Quinlan

Easily export your WordPress blog to a Tumblr blog.
<h3>Known Issues</h3>
<ul>
<li>Images are not exported</li>
<li>Shortcodes are not processed</li>
</ul>

Tumblr Export for WordPress

fsquared

The F2 Tumblr Widget displays recent posts from the provided tumblr blog.
It allows the user to select how many posts to display, to restrict which 
posts are shown by type and tag, and to render the posts as either a list 
or a slideshow.
Posts can be displayed in full, as title only, or with an excerpt. Photo, 
video and audio posts will have the media displayed when the display type 
is not ‘title only’.
The audio player in posts can now be automatically resized to match the 
selected media width – this is enabled by default, but can be deselected 
in the widget setup.

F2 Tumblr Widget

This widget displays recent posts from a tumblr blog.

Tumblr Export for WordPress vs F2 Tumblr Widget