I haven't heard anything from Arizona either. I honestly can't believe it. I also have contacted the department on numerous occassions. I was told in mid-March that decisions would be given in two weeks. After not hearing anything since then, I emailed again late last week and received no response.
I have another offer which I feel great about, but I find it hard to say yes without hearing from all of my options. I seriously can't believe they haven't told everyone yet!
Sorry if my response doesn't add any light to the situation, but at least you are not alone with all of this.