I was wondering if you can make C#/.NET applications for iPhone? How would I start?
You can use MonoTouch http://xamarin.com/monotouch
Get yourself a MonoTouch license.
Monotouch would be the way to go .
p.s. i really suggest you go native on any platform .
I recommend you to buy a book for developing iphone applications using c#
or go for Monotouch