GCalert -- Inobtrusive lightweight Google Calendar alerter 
(C) Copyright Andras HORVATH, 2009

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Copyright 2009 Andras Horvath (andras.horvath nospamat gmailcom) This
program is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your
option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License along
with this program.  If not, see <http://www.gnu.org/licenses/>.

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This code will access all your Google calendars and display alarms via
libnotify for whenever you have alarms set.

Libnotify alarms are, usually, little windows that _receive no focus_
(thus do not take keyboard input away from other applications) yet are
clearly visible even on a cluttered desktop.

Requirements (in debian-style package names):
python-notify python-gdata python-dateutil notification-daemon 

SECURITY NOTE: this code uses python-gdata. The current Ubuntu version
of that library, 1.2.4, will do the authentication in an encrypted
fashion but the actual calendars will be transmitted in cleartext. If
this is not what you want but instead prefer the whole exchange to occur
over an encrypted channel, consider applying the patch found at
http://groups.google.com/group/gdata-python-client-library-contributors/browse_thread/thread/48254170a6f6818a?pli=1

Also: getting 'thrown out' from Google Services is apparently normal,
GCalert will reconnect automatically.