** IF YOU ARE NOT RUNNING A STOCK LAUNCHER (ie APEX / NOVA) READ THIS THOROUGHLY **
Are you using the new Google Calendar from the Play Store and love the new icon but are fed up with the icon just showing "31" regardless of the date?
If you install this widget AND add it to your home screen it mimics the Calendar icon and shows the new icon that you love but with the actual date on the calendar.
If you click the icon it launches the new Google Calendar app if it is installed, otherwise it launches the local Calendar app.
Because this is a widget pretending to be a home screen shortcut its impossible to get it to align perfectly on all devices. It works on the stock launchers. I can't get it to align on Apex / Nova Launcher etc sorry.
CAVEATS
Due to the fickle nature of widgets and home screens we can't be certain it works on all devices but we have tested on quite a few. HTC Sense seems to be an issue.
The icon on the Nexus 7 is as close as we can get it, we can't make it any higher unfortunately.
NOTE: This app is a widget, it will not appear in your app drawer. To add, go to your widgets, look for "Calendar Live Widget" and add that to the home screen for it to function.