2006 Wow, Check Out Mark Shepherd's SpringGraph Flex Component
Ok, so I am not sure where I could use this personally, but wow, SpringGraph is as impressive a Flex 2 component as I have seen yet. Try the demos!
2006 ColdFusion Powers Adobe Kuler
Kuler is a new online application that you can use to explore and experiment with colors and color themes. Honestly, I am not a designer (duh!), so while the UI is cool I doubt it's an app I'll use much myself. What is really cool, at least for me, is that the backend for this app is ColdFusion powered Model-Glue (as noted by Sean Corfield).