Focus on the languages that you like AND can solve your problems. Depending on your platform (iPhone, Andriod, Winphone) and application will limit what langua

Focus on the languages that you like AND can solve your problems. Depending on your platform (iPhone, Andriod, Winphone) and application will limit what language(s) to use. Read what others are using on that platform, feel their pain/jubilation. Seven months isn't much time... hit the ground running by doing some guided "build this app" tutorials, go through them a couple times each till you understand the code, tools, and processes that you are working with. Also try to find tutorials that go along the lines of your idea, so maybe you can fiddle with the learned code and adapt it to what you need. I'm not in mobile stuff, so I can't suggest anything specific.