Instagram doesn't look like it'll be coming to Windows Phone any soon. It's a shame because Windows Phone is a beautiful OS, unfortunately it's just no where near as popular as Android or iOS.
Dribbble user Said Wafiq took it upon himself to design a version of Instagram for Windows Phone following the beautifully minimal Metro design which Microsoft has implemented into Windows Phone.
He's thought of everything when it comes to the design of the app. I'm sure if Facebook (owners of Instagram) gave him enough cash, he'd be willing to give the designs to them to make the app reality.
First he mocked up the homescreen. Windows Phone has a gorgeous interactive homescreen which updates in real time with smooth animations. He showed off in a GIF how notifications would pop up when someone commented or liked one of your pictures.
Next was the splash screen. In true minimalist fashion, the splash screen only consists of two shades of blue. One for the background and one for a vector style of the Instagram logo.
He then created what is practically the main app itself. Including each part of the app you would usually find on Android and iOS. However he's stuck fully to the Metro design, not just creating a port of the Android & iOS apps.
(click on image to enlarge)
Lastly, he went onto creating the filter application screen. Photos usually always look better on dark backgrounds (this is why Photoshop has a dark background) it's why this part of the app is completely dark, complete opposite from the rest of the app.
This is a stunning concept of the app which probably won't ever be made into the real thing, which is unfortunate. It's great to see something like this either way.