Kotaku reports that the all-time top downloaded game as of January 22 is Pain, the November 2007 Idol Minds release that involves launching a person from an oversized human slingshot into an interactive environment in order to inflict as much pain as possible on the character, often with hilarious results.
The all-time top download overall is Call of Duty 4's Variety Map pack.
The most downloaded games in the previous week were Capcom's Super Street Fighter II: Turbo HD Remix, Midway's Mortal Kombat II and Konami's Suikoden.
Finally, the all-time top downloaded movie was The Dark Knight, while the most downloaded TV show was Family Guy. More stats can be found at the link.