My daughter and I have been building robots with the BeagleBone Black and very recently I stumbled on the Spark Core. I really liked the Spark’s built in Wi-Fi and thought that my first project would be to use the Spark Core as a communication module for our robot. We really wanted to control the robot with our iPhone/iPad/iPods but I did not see any iOS libraries for the Spark so I wrote one.
You can read about the library on my blog: http://myroboticadventure.blogspot.com/2014/07/spark-core-ios-library.html
You can download the library from my GitHub account: https://github.com/hoffmanjon/SparkCoreIOS
I am pretty new to the Spark Core so if anyone has any suggestions/comments/recommendations, please share. I hope this library is useful to someone else besides me.