Appleguy - hang in there. You have to remember that you're having to learn not just programming for the iphone, but programming concepts in general. HTML doesn't really count as a programming language, so just toss that out the door.
Programming is a skill that takes a lot of time to learn and get the hang of. If you pick a simpler language like Visual Basic or possibly Java, and get used to concepts such as Object Oriented Design and Programming, and basic logic flows, you'll have a head start. Over time you'll learn that most programming languages do things in a similar general way, and differ mainly in syntax.
I'd suggest looking into maybe some community outreach programs at local community colleges that teach programming (NOT WEB stuff!) Take 1-2 of those to get a firm understanding of the basics of programming concepts. Then you can move to Objective-C, and then iPhone development.
I'm a professional software developer at a large multinational company, have a bachelors degree in Computer Science from Georgia Tech, and am working on a Masters Degree. I grabbed the Objective-C book by Aaron Hillgrass (I think that was his name), a book on X-Code, and a book on iPhone programming and went from no Objective-C knowledge to a working iPhone app for work in about 4 weeks... But it was a pretty intensive, bust my rear end for 18 hours a day, struggle and fight process.
I don't want to discourage you, but with your learning disability, programming might prove very difficult. Everything in software development is written text. I'm not saying it's something you can't overcome, but it's going to take a good deal of effort. You might find that you'll enjoy the design and graphical artist part of things more, or you might not. Believe me, I can't draw to save my life, and my UI's on my programs look HORRIBLE because I just suck at that sort of thing. We each have things we're good at and things we're not good at. The trick is finding things you're good at and enjoy and make a career out of them!
Hang in there and if you have any general programming questions, feel free to hit me. I've helped write a couple programming books and will be happy to help, but you have to start at the beginning and not try to jump to the "main event" of iPhone development.
--Mike