You see these plugins on blogs that allow you to insert code as formatted text.  I'd like to see that option in your text editor.  It should be a simple property and we should be able to choose the lang we want to format as.  Then I think there should maybe be a list of options so we can configure it some as well as add our own keywords.

I would also like to see it open up to allow us to add a lang if you haven't included it (since you can't possibly have them all).  And maybe a way for us to share the ones we've created.  

I also think this can be an important addition to the web controls as well.