"The book is great It's clear and easy to read, with loads of examples that showed my students what to do." -- Larry Snyder, Emeritus Professor, University of Washington, Department of Computer Science and Engineering Having the TouchDevelop book available made our events so much easier. Students could figure things out for themselves with help from the book. -- Jennifer Marsman, Microsoft Principal Developer Evangelist Mobiledevices such as smartphones and tablets are set to become the main computersthat virtually all people will own and carry with them at all times. And yet, mobile devices are not yet used for all computing tasks. A project at MicrosoftResearch was created to answer a simple question: It is possible to createinteresting apps directly on a smartphone or tablet, without using a separatePC or a keyboard? The result is TouchDevelop, a programming environment thatruns on all modern mobile devices such as Windows Phone, iPhone, iPad, Androidphones and tablets, and also on PCs and Macs. This book walks you through all of the screens of the TouchDevelop app, and itpoints out similarities and differences of the TouchDevelop language comparedto other programming languages. For users, the book can serve as a handyreference next to the phone. The book systematically addresses all programminglanguage constructs, starting from the very basic constructs such as variablesand loops. The book also explores many of the phone sensors and data sourceswhich makecreating apps for mobile devices so rewarding. If you are new to programming with TouchDevelop, or if you have not yet workedon touchscreen devices, we suggest that you read the book starting from Chapter1. If you are already familiar with the basic paradigm of the TouchDevelopprogramming environment, then feel free to jump ahead to the later chaptersthat address particular topic areas. This book is written from theperspective of a person developing their code using a web browser. TheTouchDevelop Web App runs in many modern browsers on many different devicesincluding smartphones and tablets, Macs, PC. All screenshots and navigationinstructions refer to the TouchDevelop Web App running in a browser. ForWindows Phone, there is a dedicated TouchDevelop app in the Windows Phone Storewhich gives access to many more sensors and data sources. Starting with theTouchDevelop app v3.0 for Windows Phone 8, the phone app will share the samelook and navigation structure and all features of the Web App. What you'll learn The little tricks to programming on your mobile devices and for a mobile device The scripting language and cloud-based ecosystem Using cameras, video and audio, and other sensors such as a microphone, accelerometer, compass, and gyroscope Access to the web, authorized access to web services How to write simple games using a built-in physics engine Who this book is for

This programming language was written for people who wish tobe able to create apps from their phone. This scenario is particularlyappealing to enthusiastic end-users who own mobile devices and students, whoare the target audience of this book. Table of Contents Chapter 1Introduction to TouchDevelopChapter 2The Scripting LanguageChapter 3The Wall using the screenChapter 4The WebChapter 5AudioChapter 6Camera, Graphics and VideoChapter 7SensorsChapter 8InteractionsChapter 9Game BoardChapter 10UI with Boxes and PagesChapter 11Authenticating Web ServicesAppendix AEditing TouchDevelop ScriptsAppendix BTouchDevelop ServicesAppendix CTouchDevelop DatatypesAppendix DPlatform CapabilitiesAppendix ETouchDevelop Editor on a Windows Phone

Deployment is the act of taking components and readying them for productive use. There may be steps following deployment, such as installation or m- agement related functions, but all decisions about how to con?gure and c- pose/assemble a component are made at the deployment stage. This is therefore the one opportunity in the software lifecycle to bridge the gap between what the component developer couldn't know about the deployment environment and what the environment's developer couldn't know about the open set of depl- able components. It is not surprising that deployment as a dedicated step gains importance when addressing issues of system-wide qualities, such as coping with constrained resources or preparing for component adaptation and system evolution. Yet, component deployment is still a discipline in its infancy: it became mainstream practice only in the mid 1990s. Much of the best practice impulse originated in products like Microsoft's Transaction Server and its approach to attribute-based programming and later products like Enterprise JavaBeans and now the Corba Component Model. All these address the speci?c needs of enterprise appli- tion servers. However, the potential of the deployment concept goes far beyond this. Deployment can and should touch e?ectively all truly component-based solutions. The proceedings of Component Deployment 2002 represent a good cro- section of the gamut of deployment issues. From customization to address - source constraints to recon?guration of deployed systems and from architecture to design to languages, the avid reader will ?nd some contribution.

Judith Bishop is a computer scientist, in Pretoria South Africa, specializing in the application of programming languages to distributed systems and web-based technologies. She is internationally known as an advocate of new technology. Her books on Java and C# have been published in six languages. She represents South Africa on IFIP TC2 on software and is a chair or member of numerous international conference committees and editorial boards.