TouchDevelop

Create apps on your phone, share them with other people! Create fun games and automate recurring tasks. You compose programs by tapping on the screen. Query the phone sensors, send web requests, and manage your data in the cloud.

Update v3.2:
- Bug fixes and improvements based on community feedback – many thanks to all our beta testers!
- New interactive tutorials
- Cloud data makes it easy to share data with other people and across your own devices

Update v3.1:
- Pin to start, enhanced tiles that can cycle through pictures
- Bluetooth support
- Radio support (only available on some phones)
- Debugger, profiler, code coverage, unit tests, crash reporting

Update v3.0:
- Unified editing and execution environment with the TouchDevelop Web App on http://www.touchdevelop.com --- that means you can edit and run your scripts on other devices in a browser
- Create awesome UIs with pages and boxes
- Authenticate web services with OAuth v2.0
- Access to NFC via the tags singleton
- Use built-in speech engine of Windows Phone
- Export your scripts as apps and submit them to Windows Store and Windows Phone Store
- Upload your own pictures and sounds to use them in your scripts

Features added in previous updates:
- Access to accelerometer, location, maps, translation services, web search, share on Facebook or Twitter, and more
- Take screenshots, write comments, compete on leaderboards
- Code synthesis: When you search for available commands, just say what you want to do, and TouchDevelop will try to write the script code for you
- Fast game and physics engine
- Get push notifications when someone does something related to your scripts
- Define custom structured data types, objects, tables
- Create and reuse code with libraries