Life at Eclipse » Blog Archive » Introducing Orion. A browser-based IDE based on Eclipse ideas (but newly implemented, so not just Java applets, but cleanly based on HTML5 and JavaScript). Could be quite interesting - of course, there are the usual naysayers, and of course the web is not necessarily the ideal platform for an IDE. But the web browser is everywhere and access is relatively easy from anywhere. So as an additional option to supplement a normal IDE, it can certainly make sense (e.g. for working on the go via an iPad).