could someone please tell me how easy it is to use Unity for iPhone development. I wanted to know how hard is it to code games using Unity. I am well versed with javascript, ActionScript and Visual Basic. But objective C has been a problem for me to understand. I have many ideas for games but currently implementing them using the iphone sdk is a BIG problem. This is going to be my first time creating games. hence just wanted to know if spending $500 is worth it for a person with my skill set. Thanks for all the help
You can give the Unity Trial a go.
Developing for the iphone is more or less the same.
Your programming background will likely make the start easier but as you know javascript you also might run into more initial frustration till you don’t think of Unity’s JavaScript as JS anymore (its only a syntax similar .net language)
Thanks, but how difficult is it for someone who has never created a game before ?
You can download the regular desktop trial from the website.
Just do that and you will experience it.
That will tell you more than 10 pages of answers here 
It depends on the kind of games you want to make.
I can only tell you about my experience with Unity, and not how easy or hard it will be for you. I have worked with several engines before (Blitz3d, Truevision, …) and have made a handful of Flash games. Coming from that background, I find making the games that I want to do fairly straightforward with Unity (except that you have to jump trough some hoops if you want to do 2d stuff). I started using Unity about one and a half month ago, and my first game is nearing completion. And I’m far from the best programmer in the world.
But yeah, give the trial a go. When it’s close to expiring, send a mail requesting the Unity Iphone trial. That’ll give you plenty of time to figure it out for yourself.
Thanks a lot, dreamora and smag jut trying out th trial. is there any nice place where i can learn unity ?
Go to the main forum index and look through teaching.
This is a good thread from Teaching:
http://forum.unity3d.com/viewtopic.php?t=8524
Read this one and look for the links to Will Goldstone’s site.
Also: Spend time reading the other Unity (non-iPhone) forums, as there is a lot of generic Unity talk/help out there.
We made a few titles in xcode, but we’ve found Unity speeds things up a bit
i’m a td/vfx supervisor and I had no issues jumping from 3d max into unity and making titles straight away… So its not that difficult, and lets be frank… The console/debugger practically holds your hand, and you can copy/paste huge sections of the unity manual to quickly prototype things.
Unity = win.
xcode = agony.
depend on whether you are talented and can think logically. 
But with Unity it’s easy.
You must not initialize the device and OpenGL.