Here is a .deb file that should work on Ubuntu 14.10, Linux Mint, and...
Yet Another Dialog
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v1c0nt
Great Job. I love this fork of Zenity.
I created a .deb file that anyone who wants can use (see attached). Note: I show as the maintainer of the deb file. I want to make clear that I am not the creator of this excellent project.
Caution: Only install external .deb files if you trust the author. Here are some of my credentials:
http://stackoverflow.com/users/4323201/ryannerd
https://bitbucket.org/RyanNerd/ -- You can grab the latest YAD source via git from here (I created a fork of YAD without modifications and will try to keep it current)
Sorry didn't know that this was available as a PPA. Use this instead: http://www.webupd8.org/2010/12/yad-zenity-on-steroids-display.html