When a report list view is created and you ask Filemaker to create a script, IOS will generate an error when it reaches the portion to enter preview mode for older versions: Go to Preview mode for earlier versions which do not support summary reports in Browse mode. So far this is the only incompatible step I have found, not bad for a beta product... (All software is beta and the users are the unpaid living beta testers!)
You can either delete those script steps or wrap an if around them for IOS:
If get(systemplatform) = 3 )
do the steps
This was reported to Filemaker and will probably fall into the black hole inside the suggestion box....