Wiley Professional Microsoft Smartphone Programming 978-0-471-76293-5 Manuale Utente

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Introduction to 
Microsoft Smartphone
Mobile computing is everywhere today. The number of cell phones, PDAs, and other handheld
mobile devices has exceeded the number of computers in the world. The Yankee Group estimates
that there are approximately 1.8 billion mobile devices in use worldwide, used for a variety of
tasks, including the still predominant voice communication, text messaging, web surfing, e-mail,
gaming, and so on. As wireless technologies such as 3G cellular systems, wireless LANs,
Bluetooth, WiMAX, and Ultra-Wideband continue to mature, empowering those mobile devices
and the network infrastructure, we soon will be able to enjoy the power of mobile computing any-
where, anytime, and on any devices.
What will ultimately cause this vision to materialize are new mobile applications and services
built on the pervasive computing infrastructure, along with a set of software platforms and pro-
gramming tools. Motivated by this vision, we decided to write a book on one of the most powerful
software platforms for mobile computing: the Microsoft Smartphone. This chapter begins with a
brief introduction to smartphones and the challenges of developing smartphone applications.
Then we introduce Microsoft Windows Mobile and some related technologies. Readers will likely
find this section informative, as it clarifies some terms and concepts pertinent to Microsoft
Smartphone.
What Is a Smar tphone?
The worldwide mobile wireless industry is quickly moving from traditional, voice-based cellular
phone services to combined voice and data services, as a result of increasing demand for mobile
data access and the deployment of high-speed wireless data services utilizing a variety of wireless
technologies. For example, 2.5G/3G wireless services are being rolled out and used by a rapidly
growing number of subscribers, and the number of WiFi hotspots and residential wireless LANs
continues to grow substantially. The trend is clear: Cell phones, PDAs, and portable consumer 
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