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Using Internet‐enabled mobile handheld devices to access the World Wide Web is a promising addition to the Web and traditional e‐commerce. Mobile handheld devices provide convenience and portable access to the huge information on the Internet for mobile users from anywhere and at anytime. However, mobile commerce has not enjoyed the same level of success as the e‐commerce has so far because mobile Web contents are scarce and mostly awkward for browsing. The major reason of the problems is most software engineers are not familiar with handheld devices, let alone programming for them. To help software engineers better understand this subject, this article gives a comprehensive study of handheld computing and programming for mobile commerce. It includes five major topics: (i) mobile commerce systems, (ii) mobile handheld devices, (iii) handheld computing, (iv) server‐side handheld computing and programming, and (v) client‐side handheld computing and programming. The most popular server‐side handheld applications are mostly functioning through mobile Web contents, which are constructed by using only few technologies and languages. On the other hand, various environments/languages are available for client‐side handheld computing and programming. Five of the most popular are (i) BREW, (ii) J2ME, (iii) Palm OS, (iv) Symbian OS, and (v) Windows Mobile. They are using either C/C++ or Java programming languages. This article will explain J2ME, a micro version of Java, and Palm OS programming, using C, by giving step‐by‐step procedures of J2ME and Palm application development.

The paper's aim is to provide information about mobile viruses for end‐users or organizations and recommend useful tips of how individuals can protect their mobile phones from the intrusion of mobile phone viruses.

This paper surveys chronicle, securities, risks and countermeasure of mobile phone viruses.

This paper investigates infection routes, threats, damage, and spreading ways of mobile phone viruses and provides available countermeasures. It also provides useful tips about mobile viruses, indicating what to do and how to do it.

This research may not be exhaustive about mobile viruses.

A very useful source of information and impartial advice for end‐users or organizations who are planning to protect their mobile phones and their own privacy.

This paper is the first to survey the risk of mobile phones and it discusses how organizations or individuals can protect mobile phones from the intrusion of viruses and how to develop their own mobile virus security plan.

Rather than organize as traditional firms, many of today’s companies organize as platforms that sit at the nexus of multiple exchange and production relationships. This chapter considers a most basic question of organization in platform contexts: the choice of boundaries. Herein, I investigate how classical economic theories of firm boundaries apply to platform-based organization and empirically study how executives made boundary choices in response to changing market and technical challenges in the early mobile computing industry (the predecessor to today’s smartphones). Rather than a strict or unavoidable tradeoff between “openness-versus-control,” most successful platform owners chose their boundaries in a way to simultaneously open-up to outside developers while maintaining coordination across the entire system.

PDAs (personal digital assistants) are companion tools that enable us to be more productive. Any device or applications that enable us to find, organize, use, and cope with too much information – as well as helping us prioritize the vast amounts of work we have to do is of enormous benefit to their owners. Applications that make us more efficient in managing our time, tasks, addresses and notes, for reminding us of when something needs to be done, in managing diary or journaling activities, in surfing for information on the Web, in reading books and articles in various formats, in writing and editing content for use by ourselves and others, for managing projects of all kinds, and for installing those applications that serve to improve our productivity are discussed. And, lastly, a few productivity‐enhancing hardware add‐ons are highlighted.

Two key factors in the success of general-purpose computing platforms are the creation of a technical standards architecture and managing an ecosystem of third-party suppliers of complementary products. Here, we examine Symbian Ltd., a startup firm that developed a strong technical architecture and broad range of third-party complements with its Symbian OS for smartphones. Symbian was shipped in nearly 450 million mobile phones from 2000 to 2010, making it the most popular smartphone platform during that period. However, its technical and market control of the platform were limited by its customers, particularly Nokia. From 2007 onward, Symbian lost market share and developer loyalty to the new iPhone and Android platforms, leading to the extinction of the company and eventually its platform. Together, this suggests lessons for the evolution of a complex ecosystem, and the impact of asymmetric dependencies and divided leadership upon ecosystem success.

Many health‐care professionals are reaching for their palm‐size computer or personal digital assistant (PDA) as their latest indispensable health‐care instrument. How can libraries, librarians and information science professionals support further adoption of this popular peripheral tool? The Tompkins‐McCaw Library for the Health Sciences, part of the Virginia Commonwealth University Libraries, has formed a health‐care PDA Special Interest Group and sponsored a listserv to provide opportunities for informal communications. In addition, other health sciences libraries have provided instructional and program development support. Highlights such activities and programs to provide an overview of how PDAs are being used by health‐care practitioners throughout the country. In addition, offers Internet home pages and articles that specifically address health‐care applications of the PDA.

This paper considers firms’ incentive to preserve compatibility between product generations in a duopoly setting. A firm may or may not maintain backward compatibility depending on its first period market share. Firms’ compatibility choices consequently will affect their pricing behaviors. Specifically, it is shown that under certain conditions both firms will preserve compatibility and act as local monopolist in the second period. Hence, backward compatibility becomes a tool for firms to relax second period price competition.

The Claude Moore Health Sciences Library at the University of Virginia is one of several libraries taking a leadership role with personal digital assistants (PDAs). The mission of the Library is to provide information management expertise and institutional leadership to connect students, researchers, clinicians and staff with the biomedical information they need to advance the education, research, patient care and public service programs of the University of Virginia Health System. As a corollary to the mission, the Library’s PDA services are built around the premise that users need the skills and knowledge to effectively use PDAs in their workflow.