MonoGame - Write Once, Play Everywhere

An Open Source, implementation of the Microsoft XNA 4 Framework. Our goal is to allow XNA developers to target iOS, Android, Windows 8, Mac, Linux and more!

Caliburn

•    CSharp

Caliburn.Micro is a small, yet powerful framework, designed for building applications across all XAML platforms. With strong support for MVVM and other proven UI patterns, Caliburn.Micro will enable you to build your solution quickly, without the need to sacrifice code quality or testability.The Caliburn.Micro team uses ReSharper by JetBrains.

rpush - The push notification service for Ruby.

•    Ruby

Rpush aims to be the de facto gem for sending push notifications in Ruby. Its core goals are ease of use, reliability and a rich feature set. Rpush provides numerous advanced features not found in others gems, giving you greater control & insight as your project grows. These are a few of the reasons why companies worldwide rely on Rpush to deliver their notifications. Initialize Rpush into your project. Rails will be detected automatically.

Player Framework by Microsoft

•    Silverlight

An open source, robust video player framework for Windows 8, HTML5, Silverlight, Windows Phone and other application platforms.

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.

SecureUDID - A UDID solution that is secure

•    Objective-C

SecureUDID is an open-source sandboxed UDID solution aimed at solving the main privacy issues that caused Apple to deprecate UDIDs. Developers can still differentiate between devices as if they were still using a UDID, but only within apps they control. End-users can globally opt-out of SecureUDID collection across all applications and services that use it.

ruby-push-notifications - iOS, Android and Windows Phone Push Notifications made easy!!

•    Ruby

Ruby Push Notifications gem usage is really easy.

Sveriges Radio Play

This is an Open Source variant of Sveriges Radio Play application for Windows Phone 7.5 Please follow or participate in the project!!!!!! - This is a very new app and is therefore not available on Windows Phone Marketplace. - Developed in C# and Silverlight for Wind...

Face Detection For Windows Phone 7

A library for performing face detection on windows phone 7. This library uses the same algorithms and detection models as OpenCV and is written in C# and built for the Windows Phone. Also includes a camera user control that supports automated taking of photos and showing camer...

Windows Phone Notifications with Twitter

Use a Twitter account to send notifications to users of your Windows Phone app!

Silverlight Metro Theme

•    Silverlight

Metro Theme for Silverlight.

WinMilk

Remember the Milk client for Windows Phone 7

MoAds Win Phone 7 Custom Ad Control with AdMob support

MoAds is a custom Silverlight control for Win Phone 7 for showing ads from different service providers including AdMob. MoAds has support for serving custom ads and is highly "Blendable".

Triathlon Checklist

Triathlon Checklist is a Windows Phone application for triathletes. Download it for free: http://bit.ly/TriathlonChecklist

Windows Phone Silverlight Toolkit Behavior Extensions

"Windows Phone Silverlight Toolkit Behavior Extensions" is a project made as an extension to the existing "Silverlight Toolkit for Windows Phone". This project contains behaviors which can be used by designers to set page transitions or the tilt effect without writing any xaml.

Troll Face SDK

Application project using the Face SDK for Windows Phone for demonstration purpose

Windows Phone Commands

Powerful tool to assist the development for WP7 and WP8 .Isolate Explorer , Manifest file editor, supported cultures editor, translate by Bing or Google, etc.

Calcium: A modular cross-platform application toolset

•    WPF

Calcium is an application tool set, providing much of what you need to rapidly build multifaceted and sophisticated applications for WPF and Windows Phone

MachineSLATStatusCheck

This helps to check the SLAT capability of a machine, so that it can run hyper-v client or not.

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