The Recent Content widget for sure allows you to do this. Although we did discover a performance hit on this initially. It seems to have dissipated, but I'm unsure why and whether it is OK everywhere now or not.
Great - thank you!
I wish there was a way to let the Recent Blog Posts aggregate, too, since it will show the whole blog post in that widget on the main page. This groups communicates mostly through Blog Posts, so it will be hard to aggregate only via the Recent Content widget, which only shows headlines basically.