We still have the code for a web based editor which at some point we may release; though for now we've decided to plough all of our energy into making Fuse IDE for Eclipse as awesome as we can.
We're also working on an 'RCP' install of Fuse IDE so that you can install it as a stand alone application so you don't have to mess with your regular Eclipse install if you prefer. For now though if you want a separate install of Fuse IDE you could just download another Eclipse distro and use the Fuse IDE update site to install Fuse IDE into it - then you don't have to change your normal development eclipse install.
One day I'd love a Fuse IDE for IDEA plugin; though we've no immediate plans for that yet.
related to your comment James, do you have a ETA on the "Standalone" install of FuseIDE. I had a requirement to use FuseIDE to connect to a oracle weblogic install hosting camel routes. I ended up putting the weblogic classes in the bootclasspath of eclipse, obviously this may/will break FuseIDE or Eclipse at some point. Unfortunately I couldn't find a better way.
Any chance you have any recommendations?
I documented my configuration here: