Abstract: A method for improving the responsiveness of a client application by providing that application with a local database which is a replicated subset of a database held on a remote server.

Abstract: The invention is a method for enabling digital content to be downloaded to and used on multiple types of computing device by (i) linking user accounts on each device to a “master” user account defined and stored on a remote server; and (ii) managing the user's access to a defined service using his devices via the said master user account; and (iii) allowing the download of digital content to each said device on which the user is permitted to access the said service using a file format which is appropriate for use on each said device type. A user may manage and access the same user account from multiple types of computing devices. Furthermore, the number of device platforms accessible in a similar manner by the user is extensible and the user's information is kept automatically synchronized across all devices.

Abstract: A method for improving the responsiveness of a client application by providing that application with a local database which is a replicated subset of a database held on a remote server.