Abstract: Solutions, systems, and techniques for applying 2-dimensional changes to a shared document are discussed. The document is divided into vertical columns of a particular width, each column represented as a one-dimensional vector that is a sequential list of blocks in that column, each block representing a content item included in the document. Each block has a starting column, a block height, and a block width indicated by how many columns the block occupies. Each block has row indexes that represent a relative position of the block in each column it occupies. A document modification command is represented as transfer functions, each transfer function corresponding to a document column. The transfer functions are applied to the document columns to alter a row index of block(s) in the corresponding column(s), thereby altering the relative position of a block with respect to other blocks in that column.

Abstract: A software-based mechanism for taking multimedia notes while using a mobile computing device is provided. The interface is stream-based so as to enable complete control with a text or numeric keypad, a directional pad, and command button. A note document containing textual data and objects representing other data types may be closed and revisited after it has been created. It may be either read or edited in a single session. Changes may be manually or automatically saved to the note document for ease of user experience.

Abstract: A software-based mechanism for taking multimedia notes while using a mobile computing device and synchronizing with a desktop note taking application is provided. A note document containing textual data and objects representing other data types may be synchronized in whole or in part between the two applications. The documents including file formatting of the non-text data may be converted to a preferred format during synchronization.