The Flash timeline = interactive data visualization
In particular, the timeline has re-impressed me. The timeline gets a lot of criticism from coders new to Flash, and can confound Flash newbies in general. But when you think about it, it's a really great tool. The Flash timeline is interactive data visualization in high style!
It's a representation of dynamic data arranged in a two dimensional grid, with time in one axis and space in the second. Each frame of each layer is accessible from this visualization. When you click on a particular frame in a particular layer, you get immediate access to those assets. Additionally, it folds and expands data navigation on direct selection.
OK, maybe I'm working too hard these days, and I'm getting a bit punchy, but I just had to share.