It's long time dA finally released an app, and your creation is absolutely perfect for it.
I think you'll notice the only time I graded you less than four stars was on originality, though I think your lack of it is actually beneficial to the design. Your design is clearly very similar to other social networking apps (esp. the facebook & gmail apps) and dA's standard site layout, making the app easy and familiar to navigate. However, it has just enough originality to make it interesting and visually appealing.
Great work! I really hope dA takes advantage of your vision and goes ahead with the app. Your design is very impressive. Oh, and congrats on the DD.