Web Development to iPhone development

Hello all...

I've been developing web applications for a little under a decade. After reading some articles regarding mobile application development and the huge future that it has, I'm really interested in switching over to mobile application development completely.

My question is how others have switched over and what advice they'd give me (and others) that want to do the same? What have they gained (or loss)? Have they gained more freedom and income as a result? I'd love to hear what others have gone through.