Nice collection of web tools. Especially ready made libraries for validation, captcha etc and a built-in template engine. But I am not convinced with 'on the f

Nice collection of web tools. Especially ready made libraries for validation, captcha etc and a built-in template engine. But I am not convinced with 'on the fly' compilation because most editors already do a better job there and refreshing the web page to look for compilation errors does not look productive.