Calvetica Calendar

Calvetica 5 is the fastest calendar for iPhone and iPad.

+ Beautiful interface for viewing and managing your calendar.
+ Universal. Made for any iOS device
+ Continuous scrolling month view on iPad
+ A rich month view that lets you see how events span days and overlap
+ A continuous scrolling week view on both iPhone and iPad
+ Works out of the box with all your existing events
+ Relies on the default calendar app for syncing with Google, Exchange etc
+ Quickly add an event by long pressing on a day, typing the time with our fast number pad
+ Custom Calvetica alerts can fire after the default apps alerts and give you a "Snooze" option
+ Custom Calvetica alerts allow you to set a sound thats louder and longer than default apps alert
+ E-mail an iCal file to share with others or SMS an event description to someone
+ Highly customizable complex repeats (e.g. The first thursday of every month)
+ Manage attendees
+ View a location on a map or use the map to set a location for an event
+ Tappable email addresses, phone numbers, etc in notes
+ Lots of awesome gestures for power users to get things done quicker

OTHER GREAT FEATURES
+ Customize calendar colors
+ Show/hide calendars
+ Search for events within a time range. Search by title, notes, location. Results will highlight the matching text and indicate where it was found.
+ Multiple default alarms
+ Alarms specifically for all day events (i.e. remind me 6pm the day before)
+ Icons by event titles to quickly see if it has notes, a location, attendees or if it repeats.
+ Time zone support
+ Start your week on any day
+ 24-hour format
+ Customize how event and task details appear on the edit screen. Reorder, show or hide details so you can simplify and see only what you want to see.
+ We’re friendly, responsive and personal developers who seek constant improvement in everything we build.
+ And more...

更新履歴
I gave a very nice user access to the code and they updated it so I'm posting for everyone to enjoy.