Eye-Fi On Your Apple iPhone
Yeah, no cool technology gadget is complete without its own iPhone app! Eye-Fi Inc, makers of the Eye-Fi SD cards have created a very useful iPhone application that they call, you guessed it, Eye-Fi. With the Eye-Fi application you can automatically have your photos on the iPhone uploaded to your computer from anywhere in the world by using the Internet on your phone. Likewise, you can have your photos uploaded to your favorite online photo gallery as well.
When you first install the Eye-Fi iPhone app, you will have to login to your Eye-Fi account, the same account you registered your SD card with. After doing so, your Eye-Fi Manager on your computer will be populated with your iPhone as you can see in the photo below. Like the SD card, you can rename the "iPhone" to anything you want.
To begin using the iPhone app you will need to first select the iPhone in the Eye-Fi Manager and then click on settings to configure the Photo destinations. Like with the SD card, you can choose to upload to Web Sharing sites or the Computer. 
I selected the local computer option and I configured it to use the same upload folder as my SD card, but for the folder creation I added an iPhone tag so that I will know that the photos came from my iPhone instead of my big digital camera.
On the iPhone, you launch the application from selecting the Eye-Fi Icon as seen below. 
Once opened, you have a few settings to choose from. You can change your login credentials as well as Configure Web Sharing and see what Local Computers your photos are being sent to as well.
To begin uploading photos to your online web album or computer, you will need to click on the Uploader tab at the bottom of the app. From here, you can select which photos you want to upload.
After selecting the images you want uploaded, click on the upload buttom at the top and the app goes to work! Within seconds the photos will appear on the Eye-Fi Manager and a few more seconds later they will be on your computer or online web album!
It's actually a fairly simple application but it works very well and its FREE for Eye-Fi Card users.