7 years later, I wonder why Claris didn't implement this themselves, giving a rapid-prototyping tool like FileMaker an edge for developers … any new insights or approaches except the rather clumsy tab-delimited file import & then app upload? FileMaker was always good at being a frontend to SQL databases (and with the help of 3rd party ODBC drivers still is), but here they could have achieved something.
I would now rather consider a CloudKit web services integration? Any experience with that via FileMaker?