Links

Apple:

Developer Center: https://developer.apple.com

iTunes Connect: https://itunesconnect.apple.com

iOS Developer program enrollment: https://developer.apple.com/programs/ios/

Developer Forums: http://devforums.apple.com

Android

Android Developers: http://developer.android.com/

The Developer’s Guide: http://developer.android.com/guide/index.html

Dev Community in Brazil:

http://www.cocoaheads.com.br/

http://brasil.appsterdam.rs/

Programming Q & A sites and Forums:

http://stackoverflow.com/

http://www.iphonedevsdk.com/

http://forums.macrumors.com/

Blogs, News, Tutorials and others:

Tutorials for mobile developers: http://mobile.tutsplus.com/

http://info.abril.com.br/

http://macmagazine.com.br/

http://www.engadget.com/

http://www.raywenderlich.com/

http://www.bignerdranch.com/