I know they got rid of the choice to switch to 3G only. Also there were changes made to the included widgets which may have included the digital clock. I am not sure if there is an app to control the 3G only. Also you may want to check to see if there are any good digital clock apps to add as a widget. I personally have not really looked as I tried to keep more of the larger stuff off my home page to keep it clean with other widgets (like calendar and weather). I use the clock in the notification tray for my time keeping. Good luck.