Touch screen wp7 programming

You need to use Visual Studio 2010 and create a Windows Phone 7 application using Silverlight. You also need to install Windows Phone 7 SDK so you can have project templates available to you. By default, Touch feature is supported by the phone itself. So you don't have to do anything special.

To test your app on your machine, you can't use touch. If you want to use touch, you will have to buy a touch screen (monitor) that supports multi-touch.