Same here. I am using a VM ware with the latest available macos (high sierra) to submit the apps. You don't need a mac to develop or build the .ipa, however creating the needed certificates is a lot easier on a macos than on windows machines.
Concerning flex, it get's good performance on ios devices but you might have issues on android. Still a good overall solution. -- Sent from: http://apache-flex-users.2333346.n4.nabble.com/
