Love your plugin, does exactly what so many of the new magazine style themes need.
A few requests though....
1. The option of using the actual post excerpt for the excerpt rather than just the first x number of words from the post.
2. Ability to change the thumbnail size without editing core files. 50x50 is just so teeny.
3. Ability to change the settings to only include parent category without editing core files.
4. A way to use this plugin on category pages and only show child categories.