Add-on UV Paste Copy/ Align Distribute and Screencast in Blender 2.72 I just installed the latest version (Blender2.72) - Add-on Screencast disappeared. I think it's a shame because it was very useful ... 
At a Blender 2.72 RC version I tested the add-on UV Copy/paste. And Align/Distribute UV. Blender on the site, they refer to these two add-on. But when I go to activate the Official, community testing and Blender 2.72 game. I can not find them. They have been removed as well? I thought it was official Add-On?
I don't know about UV Copy/Paste addon, but Screencast have been removed indeed.
Still, there's nothing against using it, just install it manually - download source file and install from file:

Screencast wiki page

UV Copy/Paste