Actually the post I linked covers this question. With Mobile automation you have similar possibilities like in desktop where you can manage and automate processes on you device. For example generating reports from websites. Just imagine potential situation where you have remote access to some analytics tool of your company and you would like to present your customer something. You can automate some clicks, drags etc. and easily create some datasheet for someone.
Regarding Task Mining - this is still under preview. It’s hard to say when exactly this will be in official release as for us the key is to have product 100% ready for enterprise and this needs requires a lot of testing and designing.