PC and iDevice sparring is not equal, just as iPad vs iTouch is not. PC Clients suck and lag, skyridder does it a bit better than facebook. PC gives you a better sense of controls whereas on iDevice a simple finger slip could screw you.
I prefer playing any graal server from pc simply because of the advantage of having more view space than even ipad, better controls and easier to type. iOS is less laggy and more suited. They are different, therefor they should remain different spars.
Only reason I think era has not done separate spars on their server is simply because it is impossible to spar from pc there due to lag for the sake of comparing to other servers.