https://itunes.apple.com/gb/app/pocket-informant-pro-events/id380732176?mt=8

Pocket Informant Pro version 3 has just been approved by the Apple AppStore and offers a wealth of new features and improvements including.

NEW “CLEAR” INTERFACE – a brand new re-designed interface that is beautiful, elegant and easy to use
NATURAL LANGUAGE EVENT CREATION – Enter phrases like “Coffee with Mom every Tuesday at 6am” and Pocket Informant will understand and set your event accordingly.
TODAY VIEW now shows Tomorrow, plus is fully customizable with Smart Filters and More!

CURRENT FEATURES MADE EVEN BETTER!
VIEWS – Today, List (Agenda), Daily, Weekly, Monthly, Task, Notes, Contacts views
INTEGRATED – Show events and tasks together, either what’s “in progress” or just what’s due
EVENT LOCATION MAPS – Tap a button and show today’s events mapped out for you, tap on the event and get directions (integrates with Google Maps, iOS Maps and Navigon)
RECURRENCES – Supports simple (every day/week/month/year) or complex (e.g. 4th Friday of every other month)
CUSTOMIZABLE – We give you the options you need to customize the way Informant works as well as how it looks. ISO week numbers, event and task defaults, month & week view layouts – all at your command.
COLORS/ICONS – Use Calendar or Tag coloring to visually make your organized calendar or task list more readable
UNIVERSAL – Runs on all of your iOS devices with one purchase! Other apps cost more than twice as much and have separate versions for iPhone and iPad!

NATURAL LANGUAGE CREATION – Enter phrases like “Take out the trash every Friday at 6am” and Pocket Informant will understand and set your task accordingly!
PROJECTS can now have a due date, a default template, be set to automatically complete, use parallel/sequential/single-task “next” action modes, and more!
CHECKLISTS – Create checklists for your tasks that involve lists (like grocery shopping, packing, etc.)
TODAY VIEW is now fully customizable with Smart Filters and more!
PI ONLINE EMAIL TO TASK CONVERSION – Subscribers can now email Pocket Informant Online to automatically create tasks that sync down to Pocket Informant Pro!

Current Features Made Even Better!
INTEGRATED – Show events and tasks together, either what’s “in progress” or just what’s due
FILTER – Use Tags to filter your tasks
TEMPLATES – create templates to quickly generate tasks, even with sub-tasks

The list goes on and on of new features and improvements. Just a shame you cannot make this a default app.