We're running a live stream of this really fascinating iOS camp for Windows 8 Development.
About Big Nerd Ranch
BNR is a training company focused on teaching iOS programming languages. They actually started out training Apple developers’ Cocoa API. It’s co-founder, Aaron Hillegass, is the author of “Objective-C: The Big Nerd Ranch Guide”, “Cocoa Programming for Mac OS X” and “iOS Programming: The Big Nerd Ranch Guide” and has been consistently named one of the top 25 most influential people in the Mac community by MacTech.