I found this on the youwave forums:
>Summoners War : Sky Arena (by COM2US) version 1.2.2 is written in ARM code and does not support x86 architecture, therefor can not run on youwave.
http://youwave.com/forum/index.php?topic=4311.0
And on the list it mentions, SW is on the incompatible list.
You need a fancy Phone or Tablet with Android or iOS. Although you obviously can draw a lot better on a big tablet.
EDIT: or you use some sort of Emulator to use Android Apps on a PC ( http://youwave.com/ or http://bluestacks.com/ )