The Flow button for mobile trigger is super useful for kicking off processes manually but this requires the app to use. What would be good is if we had a new trigger that allowed the creation of a "virtual" button. On creation of a flow with this trigger it could auto generate the html that can then be copied and embedded into a webpage for example. This would really open up the possibilities for where we could manually trigger Flows from.
Could extend it further and provide customisation options to allow control over what the virtual button looks like (colors, font etc)