Is there a way to snooze the reminder for a calendar event on iPhone?
This is not supported by the default calendar app at the moment. An app called Calendar Alarm from the App Store might be what you're looking for. Its listed features include:


  
  Works seamlessly together with all
  iPhone supported calendars (Google
  Calendar, CalDAV, Outlook, Exchange,
  iCal).
  Snooze function with intervals of your choice.