Silverlight Toolkit

•    Silverlight

Silverlight Toolkit and Silverlight for Windows Phone Toolkit are a set of Microsoft components for developers.

Caliburn Micro: WPF, Silverlight, WP7 and WinRT/Metro made easy.

•    WPF

A small, yet powerful framework designed for WPF, Silverlight, WP7 and WinRT/Metro which supports architectures based on MVVM (Presentation Model), MVP and MVC.

The Windows Phone Toolkit

•    Silverlight

A collection of standard controls, animations and helpers for creating beautiful and consistent WP7 & WP8 apps

Windows Phone Power Tools

The Windows Phone Toolbox is an extension to the regular XAP deployer tools that come with the Windows Phone SDK which adds features like the ability to update a xap and to browse the IsolatedStorage of an installed (developer) xap.

Open Remote Control Suite

•    CSharp

Open Remote Control Suite is a suite of tools to remotely control the PC. We are aiming to offer a gamepad, mouse, keyboard support and other services in future.

Tally Marks for Windows Phone 7

•    Silverlight

Tally Marks is a counting application. It can count almost anything you'd like to count, and it does it with tally marks! Count the number of people at your party, the number of steps from your hotel room to the conference meeting room, or anything else that needs counting.

HubTile

•    Silverlight

A fork of the WP7 HubTile control (Silverlight Toolkit for WP7 Mango) for Silverlight 4.

RenRen Windows Phone 7 Proxy

•    CSharp

RenRen is the most popular chinese social network. RenRen Windows Phone 7 Proxy makes it easier for windows phone 7 developer to make their RenRen related windows phone 7 application. It's developed in C#.

WinMilk

Remember the Milk client for Windows Phone 7

Phone as a Remote Control

PAARC is a library that enables Windows Phone 7 devices to be used as remote control or input devices for any .NET desktop application. Supports raw (multi-)touch input, gestures (tap, double-tap, hold, pinch, drag, flick), sensors (accelerometer, compass, gyroscope, combined ...

NopControls for Silverlight & Silverlight for Windows Phone

•    Silverlight

NopControls is a set of fun controls for Silverlight (both desktop and Windows Phone).

Coding4Fun Toolkit

Coding4Fun provides toolkits and samples that aim at helping developer's lives easier. Coding4Fun Toolkit has Windows Store and Window Phone Controls

Windows Phone UpDown Control

The Windows Phone UpDown Control is an open-source project built on top of the Microsoft Windows phone 7.1 . It is a effort that provides input values on a minimum and maximum limit. It's developed in C# with .NET

DeeWeibo

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Microsoft Silverlight Analytics Framework

•    Silverlight

Extensible Web Analytics Framework for Microsoft Silverlight, WPF, and Windows Phone 7 Applications.

Bigpicwatcher

A picture viewer without 2000x2000 limit

WP7 Catto Free App - Windows Phone 7 .NET Silverlight Sample App

•    DotNet

WP7 Catto Free App - Windows Phone 7 .NET Silverlight Sample App This is a WP7 app that is a free sample of examples. Currently the app is running in the emulator and supports a few nice features of the phone such as orientation, input scope, control of the back button.

Phone 7 Action Pack (Windows Phone 7)

Phone7ActionPack #wp7ap is a set of tools aimed at making developing for Windows Phone 7 as easy as possible. It will include some useful Extension Methods, Behaviors, Actions, Triggers and several controls.

SketchFlow Template for Windows Phone

The SketchFlow Template for Windows Phone adds a new SketchFlow template for Expression Blend users, making it fast and easy to prototype Windows Phone applications.

Microsoft HealthVault Windows Phone Library

HealthVault Windows Phone library enables developers to write Windows Phone applications which interact with a user's personally controlled health record.