Lol, clearly you don't get it.
If you want to develop for Windows, then WinRT is the new standard. Just like if you want to develop for the Web, HTML5/CSS3 is the new "standard" (it's technically still in process/development).
And Responsive design is not an international standard either, it's the norm and accepted as the best way to develop new websites. But no body actually ratifies it as some universal standard. Which exactly why I said norm/standard.
No, I don't get it. You're talking with a forked tongue. You talk of 'standards' which are not standards. You, as a web developer, must surely understand what a standards is. Let's take a look at word documents for a moment - almost everyone says that .doc is the standard format for documents, yet which .doc format are they talking about? .doc was NEVER a standard. It may have been the norm, but never a standard.
I feel that you are you using the word 'standard' incorrectly to support your viewpoint? This is the type of sophistry to which I previously referred.
-----------------
Look at the title of this thread again:
I want to be, but I'm not convinced - Universal Apps. So far you have talked about your hopes and expectations for Universal app, and I'm delighted that you are so confident and excited by them. I want more developers like you to come forward to address my concerns and reassure me that you are committed to developing them.
Alas, at the moment you are pretty much a lone voice which is saddening. You and I are both excited about Windows 10 and what it
might deliver for us. Like you, I'm rooting for MSFT to produce a winning formula that will see Windows emerge as a relevant, stable, secure and desirable (to uses and developers) OS.
When you look at the apps that are being pulled from the store, including MSFT's own, you have to wonder whether MSFT is really doing enough to get developers on board.