Ubisoft has a released a video of new Assassin's Creed II gameplay. The video is essentially the same demonstration given at the Penny Arcade Expo, though a few things shown at the expo have been omitted. Specifically, the video doesn't show the ability to throw money on the ground [update: Yes it does.] -- which will cause peasants to scramble after it -- or the ability to blend in with any crowd -- not just groups of monks and citizens on benches.
Still, the video shows off a great deal of the game's new features, including the wrist cannon, new side missions, improved Eagle Vision, the new economy system, indoor challenge areas and, our favorite, poison. Watch it. You know you want to.