That's cool but I meant the ability to get an idea for an extension, create it, and load it without leaving Chrome. Chrome already has Codemirror and some abili

That's cool but I meant the ability to get an idea for an extension, create it, and load it without leaving Chrome. Chrome already has Codemirror and some ability to store files using snippets, so why not extend that to create things? I realize this an exceptional use case but it'd be great to see Chrome fit Steve Yegge's QWAN concept, where one of the ideas is that a system should be modifiable and extendible without rebooting, much like Emacs (Chrome is so close to being there it hurts, but is likely intentionally prevented from working that way).