Responsive design is one of Android's most fundamental design principles. It just took a while (and a few million tablet sales) for developers to take the platform seriously.
Most new android apps are responsive these days. And those companies that maintain their existing apps are busy adding big screen support.
I'm glad to hear that companies are busy adding big screen support, though that support is arguably coming late. The main point is that an Android app's interface could be stretched across anything, and this has certainly been a design obstacle in the past.
I just posted two screenshots showing otherwise.
> Android's fragment API makes it a lot easier than he iPad to adapt to a proper tablet UI if you want.
And this is just ridiculous. Regardless of whether you prefer iPads or Androids, iPads are most decidedly easier to design tablet UIs for because there are so few screen sizes.
For example, Skype: http://i.imgur.com/4XwVmjy.jpg