How can I include featured images in the Recent Global Posts widget?

Hi,

One of my largest incentives for becoming a member in WPMU DEV was because of your seemingly great way to interconnect sites on the network and broadcast content to and fro.

Using the Recent Global Posts widget, I can't seem to get it to display images or proper content from the other sites on the network.

How can I get the widget to display the posts' featured images or indeed any images?

How can I get it to display a proper excerpt of the posts? Right now it shows the plaintext content in the widget, which is very problematic if the content starts with a shortcode of some kind.

Best
Martin