I used to believe using something like the tools you outlined would be easier until back in 2004 I spent 6 months porting my naitive windows application to appl

I used to believe using something like the tools you outlined would be easier until back in 2004 I spent 6 months porting my naitive windows application to apple. I scrapped the whole thing and started rebuilding on the predecessor to xulrunner, rebuilding mozilla and using XUL was great until I started to need graphing and different fluid layouts that I realized HTML is so much better for cross platform as more people are spending more hours every day making it better on more platforms and devices and it really is write once run everywhere once you move your native app to the server - at the end of the day you are going to spend countless hours tweaking for the different target OSs anyway - the web with HTML / CSS / JS are better at this than any other native solution... [update] we ported our native c++ components to xpcom interfaces and rebuilt the frontend in 4 months allowing us to launch our product simo health - later purchased by RevolutionHealth 4 months later... I still as recently as 3 months ago receive emails from past customers asking for updates.