Flickr people once again outdid themselves. An update to the design of the single photo page changes things to the better, much better. Now you’ll the image filling almost entirely your screen, instead of a medium-sized thumbnail surrounded by all the navigational clutter. Here is how it looks now.
And for those of you interested in the technical side of the story, there is a blog post explaining all the different challenges. It might even be interesting for non-technical people to read, just to get an idea of how complex some seemingly simple things can be.