Disney's latest Oscar-nominated short proves that there's still a future for 2D animation. Paperman combines 2D animation with 3D animation. The result: a sweet little film that will give you hope for a computer-animated future that can preserve the feel of line-drawn animation.
If you're curious as to how they did it, here's a featurette explaining the process with the Disney gang.
UPDATE: This was originally labeled a Pixar short — it's Disney, apologies for the mix up.