Ok, its not really a new feature, but the implementation is completely new. Now it is possible to enter a feed url when submitting a game to the database, or add it to existing entries. The headlines get aggregated and displayed on the game page and, with all other feed headlines on the [url=http://www.lgdb.org/feed_items]Game news[/url] page.
The aggregation interval 12 hours at the moment and that is also the time one has to wait before the feed is checked for the first time. Some feeds might not get aggregated at all, sadly the drupal method is very very picky.