It would be really cool if.There was a app download.Like Project spark on xbox.Where you download the kit on to you home system and can make game right there on it.I would have it for all systems.I understand UE4 Is HUGE and something like project spark is smaller.But it would open it up to more people,sell more wide spread,and u4 will be everywhere.I know that would take a lot of leaseing and licenceing tho.

What are you talking about? Project Spark is a game and UE4 is a tool for creating games

You mean editor in Android? That is technically possible, but most likely it would require a lot of work to make it friendly with touch.