Brand new to iphone and OSX programming.. [A Few newb Qs]

Hey guys, I'm really glad apple has these forums 'cause I could use some peer advice.
I've seen the iPhone get bigger and bigger, and I'd like to be a part of software development for it. I think it could open up some pretty interesting doors for me.
I've come up with an idea for a fun little calculator program to start out with, however, i kind of have no idea what im doing. I've taken a few college 101-esque courses on Java, and I know a bit about C++, but what I learned in those classes w/ those languages doesn't seem to be helping me much.
I'm really not sure how to begin to learn iPhone programming. Objective-C seems like a distant cousin from C++. I've read a bit of the documentation on Apple's DevConnection, but i feel like when i read the sample code(the table suite for example) I get completely lost.
I've followed Apple's guide to making the HelloWorld Application(for iphone) which seemed to be a big help until i decided to read more on Tables. (I've decided my calculator program is going to be table based)
It seems as though the tablesuite code is written without the use of the interface builder. I think this could be one of the things confusing me, because the helloworld app teaches one how to link the two together.
Questions:
Is there any other documentation that is in the form of a tutorial like the HelloWorld App one?
Can you guys offer any advice to someone that is brand new to this get started? (I've watched the user experience stuff, and own an iphone, so I know how to plan my interface to look/work in the proper way)
How to i change the Tables in the basic Table-suite code to a grouped table. (1 group, lots of rows)
I've tried to follow apple's table documentation but the code they show and what is actually there seem to be two different beasts.
Thanks for any help you can give guys. I'm looking forward to being a part of this iPhone development world, I just need a boost getting started.

In addition to the usual two books for learning Cocoa and Objective-C (Hillegass and Kochan), you might want to check out Apple's Core Data tutorial, which has some table programming in it:
http://developer.apple.com/documentation/Cocoa/Conceptual/NSPersistentDocumentTu torial/00Introduction/chapter_1_section1.html

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