The keyboard is present in nearly every application out there. Using the keyboard is the easiest way to provide users with a way to input alphanumeric data into applications. Trivial as it might look like in the beginning, a correct implementation of keyboard behavior can be a costly endeavor. Multiple keyboard states make it hard to implement logic that will behave correctly for all of them.
We decided to gradually introduce iOS 7 concepts into our apps. Nozbe, a sophisticated app for fans of GTD (Getting Things Done) with task and project management capabilities, was the first one to get the iOS 7 treatment. We started out by removing unnecessary details which served a purely decorative purpose. This, in turn, put the focus back on key elements like content and usability.
TL;DR: Warsaw, Poland. January 11th, 2014. iOS, Android, UI design, human interaction. 21 sessions. 3 tracks. 21 speakers from all over the world. 7 hours jam-packed with tech knowledge. 0% bullshit. Mobile to hardware/Internet of Things hackathon the day before. And an epic afterparty right after the conference concludes.