So I got an iPhone...

[KingIsaacLinksr]

One of my favorite games is called Hungry Shark, where you use the tilt sensors in the phone to swim around and eat fish, swimmers, scuba divers, attack boats, level up and get bigger, and seek out hidden objects in the deep waters.  Lots of fun to be had with the free version and for 99 cents you get the whole game where you get to fight a giant crab.  Obviously Netflix is great.  Skype.  A game called Tilt To Live is great for quick twitch gaming.  Also make sure you check out www.Freeappaday.com every day.

edit:  oh I didn't read your initial post carefully enough, that you were looking for iPhone specific apps, sorry.

That's fine, I made this thread to get any apps, but with preference to enhancing my iPhone's abilities :).  But hey, any app does that, don't it?  (Except the farting ones.... =\)

[Nomad]

My favorite game is Angry Birds! Can't get enough of it! It's very addictive.