Dear pfrank, actual xamarin and cordova modules are released for free and in opensource: our aim is to let users have full power on them.
By the way, we're continuously improving them introducing new features and API.
We just noted your post and will evaluate how to introduce such features.
We're also developing a more powerful module, it will be released under subscription. The subscription will allow you to ask for some custom development.
If you're interested on such opportunity I invite you to open a ticket and address it to sales department: you'll receive more details about that.