Re: What? Still!
@nasimson, it isn't really the decade old problem anymore. That was about developers coding around proprietary browser extensions. What Curtis is talking about is how mobile/Touch applications have to be coded with completely different interfaces than desktop/mouse interfaces. For example, would you really use a 10 field grid on a iPhone? It would be so small you couldn't read anything.
I don't think the day will ever come where exact same app will look/run same on a 24" mouse desktop and a Touch device of any screen size. Even within Touch, what you can do on tablet is different than what you can do on phone screen. I'm sure these guys like Sencha will keep pushing to automate as much of that as they can but there are limits.