the editor is really nice, it's ability to sense what I am about to type is borderline magic. It'd be cool if that were open sourced, but I understand if few to none of this is going to be since they're trying to bootstrap a business.
Bottom line: Traditional web dev has starved us of decent tool support. Give us even a really basic autocompleter (especially one that knows about what's happening in the server and database) and it feels like borderline magic :)