The Mellotron Group

This sounds abit like a "bleeding edge" solution. What is the benefit besides compactness? It seems the ipad has serious power issues. When i played live i used an M Audio usb keyboard and had all my vst synths controlled through a piece of software called Live (professor?) or something like that. There is a vst called "Redtron" which sounds fabulous. This setup had some issues but sleeping screens and power run-down wasn't one.