The document discusses the state of the smartphone market in 2008 and provides guidance on developing applications for various smartphone platforms. It notes that in 2008, Nokia, RIM, and Samsung dominated the global smartphone market, with Apple growing 245%. It then provides an overview of tools and considerations for developing apps for platforms like iPhone, Android, Blackberry, and mobile Flash, noting that HTML, CSS, and JavaScript can be used to develop for many platforms. Challenges and differences between platforms like screen sizes, SDKs, and programming languages are outlined.