diff --git a/browser/widget.py b/browser/widget.py
new file mode 100644
index 0000000..c7d06a6
--- /dev/null
+++ b/browser/widget.py
@@ -0,0 +1,37 @@
+#
+#  Copyright (c) 2006 Helmut Merz helmutm@cy55.de
+#
+#  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 2 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, write to the Free Software
+#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+"""
+Some possibly useful widgets. Provide via configure.zcml if you want to
+use them.
+
+$Id$
+"""
+
+from zope.app.form.browser.sequencewidget import SequenceDisplayWidget
+
+
+class SimpleListDisplayWidget(SequenceDisplayWidget):
+
+    tag = ''
+    itemTag = ''
+
+    def __call__(self):
+        contents = super(SimpleListDisplayWidget, self).__call__()
+        return contents.replace('\n', ' | ')
+
diff --git a/organize/interfaces.py b/organize/interfaces.py
index 141980f..774c5c5 100644
--- a/organize/interfaces.py
+++ b/organize/interfaces.py
@@ -17,7 +17,7 @@
 #
 
 """
-Interfaces for organizational stuff like persons and addresses.
+Interfaces for organizational stuff like persons, addresses, tasks, ...
 
 $Id$
 """
@@ -29,6 +29,11 @@ from zope.i18nmessageid import MessageFactory
 _ = MessageFactory('zope')
 
 
+class SimpleList(schema.List): pass
+
+class LinesList(schema.List): pass
+
+
 class IPerson(Interface):
     """ Resembles a human being with a name (first and last name),
         a birth date, and a set of addresses.
@@ -41,6 +46,15 @@ class IPerson(Interface):
     lastName = schema.TextLine(
                     title=_(u'Last name'),
                     description=_(u'The last name or surname'),)
+    email = schema.TextLine(
+                    title=_(u'E-Mail address'),
+                    description=_(u'The standard email address of the person'),)
+    phoneNumbers = SimpleList(
+                    value_type=schema.TextLine(),
+                    default=[],
+                    title=_(u'Phone numbers'),
+                    description=_(u'Note one or more phone numbers here'),
+                    required=False,)
     birthDate = schema.Date(
                     title=_(u'Date of birth'),
                     description=_(u'The date of birth - should be a '
@@ -48,12 +62,54 @@ class IPerson(Interface):
                     required=False,)
 
     age = schema.Int(
-            title=_(u'Age'),
-            description=_(u'The current age in full years, so this should '
-                           'be an integer calculated dynamically, i.e. a read-only '
-                           'attribute'),
-            readonly=True)
+                    title=_(u'Age'),
+                    description=_(u'The current age in full years'),
+                    readonly=True)
     
     addresses = Attribute('A mapping whose values provide the IAddress '
                           'interface')
 
+
+class IAddress(Interface):
+    """ A postal address of a person or institution.
+    """
+
+    street = schema.TextLine(
+                    title=_(u'Street, number'),
+                    description=_(u'Street and number'),
+                    required=False,)
+    zipcode = schema.TextLine(
+                    title=_(u'ZIP code'),
+                    description=_(u'ZIP code, postal code'),
+                    required=False,)
+    city = schema.TextLine(
+                    title=_(u'City'),
+                    description=_(u'Name of the city'),
+                    required=True,)
+    country = schema.TextLine(
+                    title=_(u'Country code'),
+                    description=_(u'International two-letter country code'),
+                    required=False,)
+    lines = LinesList(
+                    value_type=schema.TextLine(),
+                    default=[],
+                    title=_(u'Additional lines'),
+                    description=_(u'Additional address lines'),
+                    required=False,)
+
+
+class ITask(Interface):
+    """ A task has a start date, an optional end date, and is usually
+        assigned to one or more persons.
+    """
+
+    start = schema.Date(
+                    title=_(u'Start date'),
+                    description=_(u'The date when the task should start'),
+                    required=False,)
+    end = schema.Date(
+                    title=_(u'End date'),
+                    description=_(u'The date until that the task should be '
+                                   'finished'),
+                    required=False,)
+
diff --git a/organize/party.py b/organize/party.py
index 5b49fa1..e0654f4 100644
--- a/organize/party.py
+++ b/organize/party.py
@@ -17,15 +17,16 @@
 #
 
 """
-A set of simple application classes for contact management to be used
-as an example for some of the cybertools packages.
+A set of simple application classes for contact management; this may be used
+as an example for some of the cybertools packages, but may also be the base
+for some real life stuff.
 
 $Id$
 """
 
 from zope.interface import implements
 from datetime import date
-from cybertools.organize.interfaces import IPerson
+from cybertools.organize.interfaces import IPerson, IAddress
 
 
 class Person(object):
@@ -55,6 +56,8 @@ class Person(object):
 
 class Address(object):
 
+    implements(IAddress)
+
     def __init__(self, city, street=u'', lines=[],
                  zipcode=None, country=None):
         self.lines = lines      # a sequence of additional address lines
diff --git a/organize/task.py b/organize/task.py
index 51e21cd..80f1011 100644
--- a/organize/task.py
+++ b/organize/task.py
@@ -17,8 +17,7 @@
 #
 
 """
-A set of simple application classes for contact management to be used
-as an example for some of the cybertools packages.
+Task management classes.
 
 $Id$
 """