@asppsa: great, thanx for your help
@sizvix: and even if your are several (there is strength in unity )
There is already some apps working, like the calculator (that is already a webapp) - I will see how we can add it by default in the building step (this will also be useful later for the other default apps).
I will work on some app too in next weeks, but I have little experience with web apps, so I'm still wondering what "easy to port" app I should target. Like the one that doesn't need a lot of hack to be converted.