Iphone application development / Ipad indeed become a very lucrative opportunity today. As a developer you can create a variety of applications that run on the Iphone / Ipad, and then you can get revenue from that product.
However, not everyone was able to develop applications Iphone / Ipad, because it uses algorithms and programming languages ​​are complex. However, after I learned of this science, it makes application Iphone / Ipad not difficult, you try to learn it here : http://bit.ly/lPPOFa ,  I really hope this can be useful for you.