What was the timing for the html5 vs native decisions and corrections?

I'm assuming you're talking about the mobile applications running slowly for the first few years. I uninstalled a year ago and haven't checked back. I'm curious how things run these days.

And is the debate mainly focused on when webapps will take over? Or is it debated if it will occur at all?

I think with mobile hardware gaining so quickly we should see webapps equaling native within five years.