Box, the online storage and file sharing service, has released an application for Windows Phone.
The Box application for Windows Phone includes all the features available on the Android and iOS applications. You can upload/download files from your online storage, share files as links, make comments and view updates on your files from your Windows Phone device.
Box has beaten its competitor Dropbox to having their app on the Windows Phone platform. The Metro UI (or Modern UI if you've already dropped the Metro naming...) implementation is pretty clean and responsive, and the app is available in a variety of languages at launch (English, French, German, Italian, Spanish, Brazilian Portuguese, Simplified Chinese, Traditional Chinese and Japanese).
Source: Windows Phone Marketplace