diff --git a/sugar/shell/WindowManager.py b/sugar/shell/WindowManager.py
new file mode 100644
index 00000000..8b8720ee
--- /dev/null
+++ b/sugar/shell/WindowManager.py
@@ -0,0 +1,83 @@
+import pygtk
+pygtk.require('2.0')
+import gtk
+
+class WindowManager:
+	__managers_list = []
+
+	CENTER = 0
+	LEFT = 1
+	RIGHT = 2
+	BOTTOM = 3
+	
+	ABSOLUTE = 0
+	SCREEN_RELATIVE = 1
+
+	def __init__(self, window):
+		self._window = window
+
+		WindowManager.__managers_list.append(self)
+		
+		window.connect("key-press-event", self.__key_press_event_cb)
+
+	def __key_press_event_cb(self, window, event):
+		manager = None
+
+		if event.keyval == gtk.keysyms.Left and \
+		   event.state & gtk.gdk.CONTROL_MASK:
+			for wm in WindowManager.__managers_list:
+				if wm._position == WindowManager.LEFT:
+					manager = wm
+
+		if manager and manager._window.get_property('visible'):
+			manager.slide_window_out()
+		elif manager:
+			manager.slide_window_in()
+	
+	def set_width(self, width, width_type):
+		self._width = width
+		self._width_type = width_type
+				
+	def set_height(self, height, height_type):
+		self._height = height
+		self._height_type = height_type
+	
+	def set_position(self, position):
+		self._position = position
+	
+	def _update_size_and_position(self):
+		screen_width = self._window.get_screen().get_width()
+		screen_height = self._window.get_screen().get_height()
+		
+		if self._width_type is WindowManager.ABSOLUTE:
+			width = self._width			
+		elif self._width_type is WindowManager.SCREEN_RELATIVE:
+			width = screen_width * self._width
+
+		if self._height_type is WindowManager.ABSOLUTE:
+			height = self._height			
+		elif self._height_type is WindowManager.SCREEN_RELATIVE:
+			height = screen_height * self._height
+			
+		if self._position is WindowManager.CENTER:
+			x = (screen_width - width) / 2
+			y = (screen_height - height) / 2
+		elif self._position is WindowManager.LEFT:
+			x = 0
+			y = (screen_height - height) / 2
+			
+		self._window.move(x, y)
+		self._window.resize(width, height)
+			
+	def slide_window_in(self):
+		self._window.show()
+	
+	def slide_window_out(self):
+		self._window.hide()
+		
+	def show_window(self):
+		self._update_size_and_position()
+		self._window.show()
+		
+	def hide_window(self):
+		self._window.hide()
diff --git a/sugar/shell/shell.py b/sugar/shell/shell.py
index 12a3396d..da1031a1 100755
--- a/sugar/shell/shell.py
+++ b/sugar/shell/shell.py
@@ -11,6 +11,7 @@ import sugar.util
 from sugar.shell.PresenceWindow import PresenceWindow
 from sugar.shell.Owner import ShellOwner
 from sugar.shell.StartPage import StartPage
+from sugar.shell.WindowManager import WindowManager
 
 class ActivityHost(dbus.service.Object):
 
@@ -223,8 +224,6 @@ class ActivityContainer(dbus.service.Object):
 
 		self.window = gtk.Window()
 		self.window.set_title("OLPC Sugar")
-		self.window.resize(640, 480)
-		self.window.set_geometry_hints(min_width = 640, max_width = 640, min_height = 480, max_height = 480)
 		self.notebook = gtk.Notebook()
 
 		tab_label = gtk.Label("Everyone")
@@ -375,7 +374,18 @@ def main():
 	activity_container.show()
 	
 	presence_window = PresenceWindow(activity_container)
-	presence_window.show()
+
+	wm = WindowManager(presence_window)
+	wm.set_width(0.15, WindowManager.SCREEN_RELATIVE)
+	wm.set_height(1.0, WindowManager.SCREEN_RELATIVE)
+	wm.set_position(WindowManager.LEFT)
+	wm.show_window()
+
+	wm = WindowManager(activity_container.window)
+	wm.set_width(640, WindowManager.ABSOLUTE)
+	wm.set_height(480, WindowManager.ABSOLUTE)
+	wm.set_position(WindowManager.CENTER)
+	wm.show_window()
 	
 	console.set_parent_window(activity_container.window)