first of all I'd like to thank you for your astounding work!
With this new update the plugin is really great.
I just like to give a suggestion for a new function I think could be useful.
Since I get several custom post types workin on my site I don't use for all the thumbnail but I made a custom field to set an featured image.
So if I'd like to add the post thumbnail in my "most popular" widget some have it and some have not...
If I can run different widget choosing for each custom post where to find the thumbnail ... well this could be a real dreamy situation!
Anyway you do a great job with this upgrade and I really want to thank you for your effort!