Came across this app: https://play.google.com/store/apps/details?id=com.darkgadgeteer.turtlegraphics https://play.google.com/store/apps/details?id=com.darkgadge

Came across this app: https://play.google.com/store/apps/details?id=com.darkgadgeteer.turtlegraphics https://play.google.com/store/apps/details?id=com.darkgadget... And this looks promising too (more like Cargo Bot) http://sourceforge.net/projects/andmaz/ http://sourceforge.net/projects/andmaz/