Feedback: Select Post Types from Widget Area to Make Widget Customizable

Hey guys,
When you go to the 'Subscribe By Email' global settings, you can choose what "post types" people will receive.....

Can you also let us choose this from the main widget? This would allow us to have multiple widgets, each with their own setting. In other words, we could have a uniquely configured widget on one page, and another one on a different page (which is crucial for many bloggers).