As every programmer knows tools are important and there is no tool more important for a developer than the IDE you use to code. In the last few years the IDE-s fall into standards and it is not common to see innovation in this area. What IDE-s you can recommend as innovative and what new ideas and paradigms they introduced?
One interesting IDE I have seen only on video is Code Bubbles. It opens code snippets as a graph of visual "bubbles". It is really interesting and definitely something I want to try.
I haven't used this but saw the demo video yesterday. The IDE is called code bubbles and has a unique way of showing and grouping related code together.
That said I find the intellitrace feature in Visual Studio 2010 quite innovative.
Palm's Project Ares: http://ares.palm.com/Ares/about.html
It's the IDE for the Palm webOS phones, that runs entirely as a web app. You build and run your app inside the browser, and when you're done, you deploy straight to the cloud.
Some cool videos of structured editor prototype that will let you directly code the AST.
This is a prototype only and I have no idea if it is still being developed.
I'd put my bet on Meta Programming System by Jetbrains. The concept is not new but it's the first time it has been implemented on such a huge scale with great IDE support. You create a DSL first, then write programs in that DSL and finally generate code in a target language.