The Calendar application for firmware 3.0 didn’t have a lot of changes but there are some pretty important ones. Starting with the ability to add Invitees to your event. Just tap it and it lets you pick from your contact list. Next is Availability. This shows if you are busy, free, tentative or out of office. These two little feature make Calendar a little nicer, but there’s one more. A pretty big feature is the ability to search. At the top of “list view” there is a search box. Just start typing and it will show you results. This is all very useful to those of you using your iPhone for business. Overall the app stayed pretty much the same with some new features. Let me know in the comments what else you think the Calendar App should have as features.