Could you go into a bit more details? I'd find it very interesting to hear about a fresh real-world experience with converting a HaXe game to another platform.
Are there many places where the same code should work but, for some reason, doesn't? Or have you knowingly made some parts of the code platform dependent, and simply need to port/independentize them?
For example some of the flash API is still missing from NME (a lib for the c++ target) & the performance (and more importantly bottlenecks) is quite different on different targets.
Not to mention all the browser limitations you have to work around if you use JS...
