LinkedIn has quietly released an official Windows Phone 7.5 application over the weekend, The Next Web reports.

LinkedIn was one of the major social networks without a native Windows Phone app. The company, which boasts over 150 million members worldwide, managed to keep the file size of the app to below 1MB and the price at zero dollars.

It makes fantastic use of WP’s Metro UI and live tiles capabilities, and the app is super responsive, though there are a few bugs already. For instance, it keeps telling the Internet connection is unavailable, though the user can visit everything on the app just fine. Scrolling lists also feels a bit quirky at times, the report says.