iPhone a Photographers Swiss Army Knife

Okay I have an iPhone and as the young kids abandon them for the Nokia N8 and other windows phones or Android phones,  I will stick with mine and upgrade to another iPhone when my contract runs out. It has numerous applications that makes a Photographers job easy. The first Application you need is Photocalc. This program has Depth of Field  calculator, Flash Exposure calculator so you can work with  using your flash guide number, the aperture,  the iso the power and the distance.  A solar  calculator for sunrise and sunset times. It allows you set the options with your own Camera and has a handy reference section.
Ayetides is another handy application and allows  you to get the tidal predictions for over 10,000 locations all over the world. It also has sunrise, sunset as well as the moon phases. This program costs about $13 but does not need the internet connection for it's data.
Easy Release allows photographers and models to complete a release on the spot. Signing on the touch screen( a Stylus would be handy) then emailing it to both model and photographer in a PDF format.
 Strobox is a handy app that lets you draw lighting diagrams on your iPhone...pity I didn't use it at a recent Studio Workshop with Creative Photo Workshops.
LightmeterPro emulates a real light meter using the camera of the iPhone, you can set ISO sensitivity and type of exposure a priority of time or Shutter speed.
Kindle for iPhone is another great app download a book from Amazon to read or as a reference resource. DSLR Remote Pro is another app that lets you lets you control your DSLR camera through your iPhone, including LiveView. You require you camera tethered to your computer and using your WiFi network can use your phone to control the camera. Of course there are numerous applications using the iPhone camera. Like Photoshop Express, Vint shift, Camera Bag, Hipstamatic.Dash of Color,Best Camera, DoFMeter just to name  a few.
I use Smugmug to house my images and there is even an app called smugwallet that allows me to sync my iPhone with my photo library on  smugmug. So the  iPhone these days is the swiss army knife of today. Of course you can still phone friends, send texts and use the built in camera. I would not be without mine!