diff --git a/kivy/modules/screen.py b/kivy/modules/screen.py
index 95b162bff..e6de415d5 100644
--- a/kivy/modules/screen.py
+++ b/kivy/modules/screen.py
@@ -89,8 +89,8 @@ def usage(device=None):
     if device:
         Logger.error('Screen: The specified device ({0}) is unknown.',
                 device)
-    print('\nModule usage: python main.py -m screen,deviceid[,orientation]\n')
-    print('Availables devices:\n')
+    print('\nModule usage: python main.py -m screen:deviceid[,orientation]\n')
+    print('Available devices:\n')
     print('{0:12} {1:<22} {2:<8} {3:<8} {4:<5} {5:<8}'.format(
         'Device ID', 'Name', 'Width', 'Height', 'DPI', 'Density'))
     for device, info in devices.items():
@@ -98,11 +98,13 @@ def usage(device=None):
             device, *info))
     print('\n')
     print('Simulate a medium-density screen such as Motolora Droid 2:\n')
-    print('    python main.py -m screen,droid2\n')
+    print('    python main.py -m screen:droid2\n')
     print('Simulate a high-density screen such as HTC One X, in portrait:\n')
-    print('    python main.py -m screen,onex,portrait\n')
+    print('    python main.py -m screen:onex,portrait\n')
     print('Simulate the iPad 2 screen\n')
-    print('    python main.py -m screen,ipad\n')
+    print('    python main.py -m screen:ipad\n')
+    print('If the generated window is too large, you can specify a scale:\n')
+    print('    python main.py -m screen:note2,portrait,scale=.75\n')
     sys.exit(1)