I still remembered a decent amount of C from high school & college (I'm just old enough to have snuck through before Java took over CS). I brushed up on the ol' K&R and then read about 2/3rds of O'Reilly's Programming iOS 4 book.
Apple's documentation and sample code is excellent, and really nicely integrated into XCode. Once iOS 5 came out, I learned almost exclusively from there. Of course, Stack Overflow is great for very specific gotchas and questions.
I did all the work on a MacBook Pro, with glossy screen, usually plugged in to a 27" Apple display (also glossy). The gloss doesn't cause me any problems unless I sit in very bright sunlight, but all things equal, I would prefer matte. Xcode is a bit of a pig, so it definitely does best on a big display.
Apple's documentation and sample code is excellent, and really nicely integrated into XCode. Once iOS 5 came out, I learned almost exclusively from there. Of course, Stack Overflow is great for very specific gotchas and questions.
I did all the work on a MacBook Pro, with glossy screen, usually plugged in to a 27" Apple display (also glossy). The gloss doesn't cause me any problems unless I sit in very bright sunlight, but all things equal, I would prefer matte. Xcode is a bit of a pig, so it definitely does best on a big display.