
So the iPhone turned out to be incredibly useful and convenient for the traveler looking to document his/her journey.
First off, the GPS in combination with Google Maps was useful in a number of ways.

For one, it obviously helped me route my trip and give me time estimates as to how long it would take me to reach my destinations. Secondly, with the built in searching business, etc., the GPS/maps combo was invaluable in helping me find hotels, gas stations and attractions. Simply type in your query, some pins drop on the map, tap a pin, tap its address to get directions and/or tap its phone number to call the place. Quick, simply, absolutely intuitive.

While the iPhone’s built-in camera isn’t great, it was good enough to simply document things and occasionally it snapped a decent photo of a landscape. What surprised me and which I only found out later when I got home, was that not only was the iPhone geo-tagging my photos (attaching GPS coordinates to locate where the photo was taken), every time I emailed a photo to Flickr to be posted to my mobile photos stream, that geo-location information was sent as well, so on my Flickr Map you can see exactly where those photos were taken, which I just think is cool as all get-out.
I was able to type blog entries using the Wordpress for iPhone application (iTunes link here).

Typing on the iPhone isn’t of course 100% easy, so longer blog entries required more time and some frustration, but it was worth it to be able to blog wherever and whenever I felt like it.
And the InstaMapper GPS Tracker (iTunes link) was unnecessary but fun.

I think I mentioned before the only downside to this app was that for it to track me, it had to be open and running in the foreground of the phone. But since the iPod function can run in the background, this didn’t matter much; I was able to open up the tracker, play a song on the iPod…

and then put the screen to sleep and everything ran beautifully.
A combination of iPhone apps Twitterriffic (iTunes link)…

and Twittelator (iTunes link)…were used to do Twitter posts and photo uploads to TwitPic.com.
And of course I could read the news online, check email and call people as well. Honestly, the iPhone makes me want to road-trip more, just because of how easy it is to document a trip with all the features that either built into the phone or can be installed on it via applications. Well worth the money in my opinion.
***Update***
Just found out that InstaMapper was able to save AND EXPORT the data it tracked, then overlay that onto Google Earth. Friggin’ amazing. Here’s a screen shot from Google Earth of my trip (click for hi-res):