[gvnonor]

WinRT development is actually quite pleasant. You can put together a decent app in very little time using just html and javascript.

Deciding what to do with the large screen real estate is challenging though. There's no chrome and the entire screen needs to be filled in with an app's components. Without a designer working, it's very difficult to put together a nice looking app.

[mmariani]

Decent is not enough, it has to be awesome. At least according to my standards. :)

On the design challenge I'll give you a tip. Fill the screen with content. If you don't have enough of it, create new views. I'll give you an example: imagine the main output for your app is some tabbed data; instead of showing as it is plot some graphs and add some buttons to flip the view to reveal the data. The key is to think visually.