I suggest you ...

Grand Central Dispatch

You should do a screencast about Grand Central Dispatch since it was introduced into iOS/OSX in August 2010. It's definitely a lot powerful and useful and a bit hard to understand so It would be amazing you get to us a screencast about that.

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    Lucas Moreira shared this idea  ·   ·  Flag idea as inappropriate…  ·  Admin →
    completed  ·  AdminBen Scheirman (Admin, NSScreencast) responded  · 

    I think this is sufficiently covered, as I’ve used it in a bunch of screencasts. If there’s anything more advanced you’d like to see covered, let me know.

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