Is there an easy way to download/upload source (besides cut-and-paste between the online and offline editor) – the online editor (at least in firefox) starts bogging down for me as the file size gets larger, so that’d be another advantage of offline editing.
I still think it’s worthwhile to improve the online experience – especially for folks just getting started with coding who may not have local editors, compilers, etc, or may find that less comfortable than the “online IDE” provided.