I had a look and it seems a very simple online editor for js, css and xml. The user really needs to know all the possible commands and keywords (like the UI element names with their options) by heart.<p>My conclusion: this is only for existing iOS developers. But then, those people probably are very comfortable using xcode already.<p>I think anybody having a Mac would probably use xcode to develop iOS apps ? So this would target devs without a Mac and (therefore) without iOS knowledge ? Then it needs to offer much more help and guidance, like auto-completion, info balloons and such.