iPhone 3G Killer App(s)

I bought my iPhone as much as anything because I was sick of having RAZRs die on me, and I missed having a smart phone that let me easily access my e-mail on the go.  I'm finding that I actually enjoy my iPhone a lot more than I thought I expected.  It really is a very useful piece of communications equipment, aside from just the phone and e-mail capabilities.

The iTunes App Store really takes the phone to a whole other level.  In fact, part of the reason that I decided to get the iPhone was seeing David Pogue's review (video) of the iPhone and App Store.  While I think that some of the most useful iPhone applications have yet to be written, there are already several killer apps available.  And they're free which is even better.

Pandora Radio has an iPhone application that lets you listen to Pandora streaming stations on the iPhone.  The sound quality is good and when you are connected via wifi it upgrades to stereo.

There is also a free Shazam application.  The Shazam service has been around for some time, but I can't say that I've ever used it prior to having an iPhone.  Their free application is wonderful and easy to use.  It allows you to "tag" music that is playing.  You press the "tag now" button and it listens for a few seconds, uploads the sample to their service, and then tells you what song you're listening to as well as linking to the iTunes Music Store to purchase it and a video of the song on YouTube if one exists.  It saves the tag history which is great because there are so many times where I'll hear a song on the radio while I'm driving and not be able to remember what it was later.  Now I don't have to worry about that any more.

Although I am not as active in the social networking scene as I once was, Facebook has a great application for the iPhone.  It presents the information feed from the service in a format that is perfect for consumption on the iPhone.  It also includes a wonderful interface to viewing photos from the site that is very similar to the photo viewer that's built into the device for viewing local photos.  Overall the application has a great interface design.