Occasionally people at Commons comment that it would be nice to have some kind
of slideshow feature, where you are able to view one image at a time and click
"previous" or "next" links to see the next in a series of images. I think the
best way to do this would be to link such a function to the gallery function for
images, where you can write
Image:Foo2.jpg|This one has a caption
This would neatly and easily define "previous" and "next" as well as showing a
caption if supplied.
Of course, once you've downloaded a page with a gallery on it, you've downloaded
all the images anyway, so you might argue that this is not going to save anyone
any download time. True, but it would be a great feature for showing off
higher-res pictures. I think it would be extremely popular at pages like
[[commons:Sunset]] and the Featured Pictures section on the Wikipedias and Commons.
Just an idea, thanks for your time.