I am super excited my this. The prospects are huge and it raises the extensibility of the ISC to another level. I have worked extensively with Azure PS runbooks as webhooks to be called from the ISC workflows but its a call out to another system, no back and fort banter. I have also worked extensively with Azure logic apps where a PS card can be integrated and there is a 2 way communication between the cards via inbound parameters and Json output. I can see these communication tools are there in the ISC PS card. Awesome!
I will be testing and will post KBs on using the card to overcome ISC limitations and spice up your workflow.