Pviewer is a better way for viewing photos from Flickr and Google Picasa Web Albums.
Pviewer (Photo Gallery viewer) is Flash based, looks extremely sleek and best of all, you get a common “paginated” interface for both Flickr and Picasa pictures.
With Pviewer, you can also view the comments and notes attached to the photo.
And each Flickr photo carries links to download the same image in various sizes. Neat.
Related: Compare Flickr with Picasa Web