Calendars is an elegant and easy to use calendar application which works perfectly with Google Calendar and the built-in iOS Calendar.
Calendars lets you manage events both online and offline
Agenda Calendar - When you're mobile, your iPhone calendar app's main focus is to show you what's happening now.
Enter Agenda.
Agenda is a beautifully designed calendar for iPhone, iPod touch, and iPad that gives you various "at a glance" views. We've stripped away all the stuff you don't need, so you can more quickly manage your day
Daily Quizz - Travel through time and discover events that have occurred on today’s date down through history.
Have fun by answering a variety of questions on history, sport, politics, major inventions, literature, cinema, as well as about celebrities and other surprising trivia
Today Calendar for iPhone - Today Calendar is a simple but practical calendar that lets you see your entire week at a glance. Because you care more about today's events than next week's, your events are summarized intelligently, with today's events in great detail, then events from tomorrow and the day after in less detail, then an overview of events in the following week
CalPrint for iPhone - CalPrint is a calendar printing utility for iPhone. It allows you to print the day/week/month views of your calendar directly to most WiFi printers, or to all printers connected to your Mac or PC without additional software required.
Besides printing, CalPrint is also a fully featured calendar viewing and editing app
GW Calendar for iPhone/iPad - GW Calendar is a GroupWise calendar client for iPhone, iPod touch, and iPad. It has a more convenient interface than the one delivered by Novell through GroupWise WebAccess. The app gives you both a day view and a week view into your calendar with easy access to the information on your calendar