Just moments ago I put my first iPhone app on my phone! The app talks to a Spark Core (huge applause for Spark) doing some trivial sensor input and posting it with spark.variable. Its just a proof of life.
Thanks to the Spark team for various support answers, and to the generous contributors to the forum for patience with a new guy, and great help.
Spark, thanks again for a great product from end to end, and a great community willing to enable people like me to succeed.