From Shiraz Khan:
Wickr is a Widget for browsing through photos on Flickr. You can browse by entering tags or by entering a Flickr user's username or email. If you are a Flickr user yourself, you can add and remove your favorite photos. You can also navigate through a user's favorites, contacts, groups and photosets. To search for photos, enter in tags. Each tag should be seperated by a blank space. Tags with multiple words should be in quotes, or joined together into one word. For example, the tag new york should be new york or newyork. A blank search will give the most recent photos uploaded to Flickr. To view photos from a user, just enter the username or email. You can also view a user's photostream, favorites, contacts, groups and photosets by clicking on the user's buddy icon.
Wickr also features a comprehensive slideshow function. There are 4 modes to choose from: Normal, Badge (similar to the Flickr flash badge), Mosaic (a mosaic of of square sized thumbnails) and Ticker (photos that scroll across the screen). Slideshows can be maximized to fullscreen like a screensaver. Version 1.52 may include unspecified updates, enhancements, or bug fixes.