Jetpack 1.5 is available for immediately release (and update.)
It’s not a massive release, but the update does include carousel functionality.
A very popular lightbox plugin is available that does something similar, written by Alex Mills. As of today, he is discontinuing development of it in light of the Jetpack release. He doesn’t feel like he needs to maintain a pluign with weaker functionality than what’s available in Jetpack now.
Here’s a glimpse at what it looks like.