Computer software for communicating with users of hand-held computers; Computer software for wireless content delivery; Computer software for enabling the use of enterprise application content on mobile devices; Computer software for enabling the use of enterprise application content on mobile devices that may be downloaded from a global computer network; Computer software platforms for enabling the use of enterprise application content on mobile devices; Computer software that provides web-based access to applications and services through a web operating system or portal interface; Computer software, namely, software development tools for the creation of mobile internet applications and client interfaces; Downloadable cloud computer software for enabling the use of enterprise application content on mobile devices; Downloadable computer software for enabling the use of enterprise application content on mobile devices; Downloadable mobile applications for enabling the use of enterprise application content on mobile devices; Downloadable software for enabling the use of enterprise application content on mobile devices; Downloadable software in the nature of a mobile application for enabling the use of enterprise application content on mobile devices; Electronic software updates, namely, downloadable computer software and associated data files for updating computer software in the fields of enabling the use of enterprise application content on mobile devices, provided via computer and communication networks; Graphical user interface software; VPN (virtual private network) operating software