line5

The plugin creates a nicely animated gallery out of attachments to a post. A demo is available at just-in-case.tv. All pictures are shown on a kind of image wall. Once one clicks on one of them, it opens in a kind of lightbox (fullscreen). Using the arrows on the right and left side, it is possible to display the next or previous picture. Previews of next and previous picture are available. 
Since version 0.5, the plugin features individual facebook LIKE buttons for each picture in the gallery.
Technically, it uses JQuery and needs Javascript to work.
A demo installation is available at <a href="http://just-in-case.tv" title="Embrace your grace ... and use the case! - Just in Case..." rel="nofollow ugc">just-in-case.tv</a>.
To use it, just install the plugin, attach some images to a post and insert [just_in_case_gallery] into the post. It works best with the theme Twenty Twelve.
Have fun!

Just In Case Gallery

The plugin creates an image wall including a nicely animated gallery out of attachments to a post.

Bjørn Johansen

This is a WordPressified version of the excellent, lightweight (for real!) imageLightbox.js (MIT-licensed) by Osvaldas Valutis (http://osvaldas.info/image-lightbox-responsive-touch-friendly)
This is his introduction to the lightbox: 
“As for the image lightboxes, I have always lacked simplicity for them. I mean not only the visual design, but the overall experience: from implementation to UX. All due respect, but I have never liked any of these light-fancy-face-boxes. They all were solving problems that just don’t exist: lots of unwanted features by default, total mess in markup, no native behavior for touch screens. I was working on a project and needed an image lightbox that solves these problems. I needed a lightbox only for images, not video, text, and iframes at once. I made ImageLightbox.js.”
This version autodetects all links to image files and opens them in the lightbox.
For your “install, activate and go”-convenience, this plugin comes with a minimal CSS that easily can be deactivated and/or replaced.
The plugin can also be themed to your liking. An example theme is available here: https://github.com/bjornjohansen/imagelightbox-theme-smooth
Please let me know if you have any issues. Fastest way to get a response is by Twitter: https://twitter.com/bjornjohansen

imageLightbox

Image Lightbox, Responsive and Touch‑friendly.

Just In Case Gallery vs imageLightbox