The app is not yet released.
Edit: But they're already announcing it, so it seems it will be soon!
Redit (LOL): I was searching on the itunes store under EA's lastest relases. But I changed my search for "swtor">see all apps (for iphone) and there it was. It's a utility app released today (Dec 15th).
Hope this helps other iphone users!
PS: for the devs or someone in charge of this. If the app is already released on the store and you guys already put the itune store "logo" on your own page why not link it properly so users click on it and go directly there.