Integrating the existing Mobile Webmaker with Leaflet has been challenging. Getting the map to display properly is clearly a lack of proper implementation of the Leaflet CSS and JS so I’m working on find out how to properly implement it.
Currently I am using OpenStreetMaps and getting a very fun result (Firefox Nightly Build).
I will update with progress once the maps are properly displaying to show you the amazing maps that Leaflet.js in combination with a map API produces. You can follow my progress on implementing Leaflet here.