I've been planning on figuring out a simple way to show the latest photo from my mobile photos category on the sidebar of my site for a while. Today I did a quick search for a plugin that would simply add a widget that I could drag/drop into place to do exactly that.
I came across the Recent Photos widget by Asad Iqbal. Asad hasn't updated the plugin in a little while so it didn't work for me out of the box. I also made a few slight revisions for my use (mostly removing a bunch of inline HTML).I've created a fork in a Gist of the widget and I plan on making a few more revisions. Feel free to use the code or fork it yourself if you find it useful.