iPad is an amazing personal assistant.
Wouldn't it be nice to have an assistant to remind you of things?
Maybe take notes while you dictate?
Keep your contacts and phone numbers handy?
Keep your calendar straight?
Send an eMail to a client or friend?
Dictation is one of my favourite features of iPad.
Getting almost every word right, iPad has made me realise the era of touch typing is almost over. I reckon it can't be more than a decade away.
It's a family and/or business calendar
It's a great (and I mean GREAT) calendaring system, especially for a small business or office.
Using the shared-calendar feature of iPad you can have multiple iPad devices with one or many synced calendars, keeping everybody up to date.