Great idea for a plugin. I was looking for something that would install all my wordpress.org favourites at once. Previously I have just been using the favourites link on the WP 'Add new plugin' screen, but the downfall with that is you have to then click install, 1 by 1 on each of your favourites.
I thought your plugin was the answer but I'm getting a problem. I load my list of favourites from my wp.org username. Then when the list appears I click the 'Run this list' link. It then goes to the next page but displays 'No items found'.