Simple Flickr Photostream widget allow you display pictures from Flickr in a widgetized area of you choice. Based on the WP 2.7 widget model
Simple Flickr Photostream widget is another Flickr photo display. I exists because no other plugins were doing what the author needed.
The plugin is essentially a widget that will show pictures from a chosen Flickr source, be it your own photostream, someone else's, one of your sets, a group, your favorite, etc...
The code is based on FlickrRss plugin made by Dave Kellam and Stefano Verna and improves by placing the controls in the widget itself rather than an admin page. This new approach, combined with the way WP 2.7 handles widgets makes it multiwidgets enabled with different options for each widgets.