I will have to take a look if fponticelli: https://twitter.com/jdegoes/status/471319014614892544 , thinks it is. My app is not a pure web app, it has some client components such as excel plugins that need to talk to the server. I was therefore looking for something that I can port to other targets with some support from the language, which is where imo haxe/nekovm seem to shine. Yes, there may be some parts missing from haxe, though, it seemed to work ok for my needs and if its good for salesforce or tivo, I thought I may not be a trailblazer afterall.