It is actually fairly fancy lcd controller: unlike most epson controllers, this one has data bytes following some commands bytes. It allows virtual windowing and layering, so you can do fancy animation on this thing.
In terms of interfacing, the display datasheet didn't provide anything information regarding the touch panel so you are out of luck there.
The lcd controller itself is reasonably simple: it utilizes a 8080 interface (sel1/2 cleared). The commands are in Section 8. To start, you may want to just write to it, and use internal fonts. At a minimum, you need to implement reset, display on/off, and go to x/y commands. From there, you can implement memory write so you can load up your own fonts / images.