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-macbook pro -No at all. I always try to have latest and fastest machine.

-I would anyday recommend Raywenderwich tutorial. They are just awesome and so easy to follow.

-Just a problem which I tried to solve. Was searcing for one but didnt found any good solution.

- Lack of research, just creating app is not enough, you have to market your app. Also, Lack of time was my another problem