I've looked at most of the online resources. The best tutorial videos seem to be on Lynda.com. Simon Allardice is really clear and concise in his explanations. The best practice exercises I've found are on Treehouse. The Mobile Makers program mentioned above is really for people who want an immersive program that combines the social, constructive, and cognitive learning methods with mentorship and career opportunities. But I would say, get started with what's online and only commit to a program when you've graduated from curiosity to genuine interest.