etm is an acronym for Event and Task Manager. It provides a simple, intuitive format for using plain text files to store event, task, and other data items, a command line interface for viewing stored information in a variety of convenient ways, and a cross-platform, PyQt-based GUI for creating and modifying items as well as viewing them. Displayed items can be grouped by date, context, keyword, or project and can be filtered in various ways. A display of busy and free times is also supported, as is a ledger view of time spent that is suitable for client billing. Alarms are supported for events and repetition for both events and tasks in a powerful and flexible manner.
Googsystray is a system tray app for Google Voice, GMail, Google Calendar, Google Reader, and Google Docs. It lets you keep track of the information provided by those services without having to keep a bunch of Web pages open or constantly checking them. It notifies you of new events, such as messages or alerts, and provides basic services quickly.
GCalert will access all your Google calendars and display alarms via libnotify for whenever you have alarms set for each event. These alarm widgets do not receive focus (and thus do not take keyboard input away from other applications), yet are clearly visible even on a cluttered desktop.
Synovel Collabsuite provides email, calendaring, and instant messaging solution for enterprises. It consists of a Linux email server with calendar and IM, a Web-based administration panel, a desktop client suite that runs on Windows and Linux, and AJAX-based Web mail access. It uses open standards for communications: IMAP, POP, and SMTP for email, CalDav for calendaring, and Jabber for IM.
PySuite is a collection of Python Vim plugins. You need Vim compiled with python to use them. It includes: an outliner similar to TVO; a todo list manager; a project manager (load/unload by directory/project, make an outline of Python files, etc); a calendar that supports adding notes to dates; a plugin to track expenses and balances; a sortable table with fields separated by 2+ spaces; resize (set a list of main Vim window sizes and use two shortcuts to resize -/+); helpgrep (enter a few words and use :helpgrep cmd to search for them in any order); pystripdoc (make a copy of the buffer with stripped out Python docstrings and comments); pyfolddoc (fold Python docstrings and comments); and aligncode (align code by '=' or '#' chars).