If you were chosen you would have been notified by now, but if you have not not heard anything either way and they said they would do so, then you may not have been finally rejected yet. They may be holding on to your materials, as someone else here suggested, because they don't have a definite commitment from another candidate to whom they offered the position. Or they may not have had the time to call you back yet. Or they don't typically care enough to respond, even to send a form-letter email to you and all the other rejectees. That's the norm these days. Time is money and they won't take the time to send negative letters, which may number in the thousands. Yes, the new norm is rude. That said, I think you wouldn't be out of line to wire them again in a few days, thank them again and ask for an update.
My action item is to keep on sending out new applications, every day if possible. Don't waste any time sitting by the phone waiting for your prince to come. Also, you need to know that sending applications, other things being equal, is not the most likely method to succeed. Number one method is building personal contacts through networking. Go to conferences and job fairs. Let everyone who'll listen that you're searching. If you think you may have struck up a rapport with someone and they show any interest in your search, background, where you want to go, etc., then let them know and ask them if they have any recommendations. They may know someone who's been looking around for a candidate. If so, ask your new acquaintance if you can mention their name when you contact the person they suggest. You should also show an interest in them, particularly if they are in the same boat as you; and offer any help you can. When you phone or write your new prospect, they will be reluctant to insult you knowing that you have the ear of their friend or colleague. This is exactly what you want - you will have a strong leg up when they remember (fondly, one hopes) your intermediary. It's just human nature. Face-to-face contact will always be a more influential search mode than meeting you via a bunch of bytes. Another advantage of building personal relationships is that they work in real time, so to speak. They will cut to the chase. If you make a favorable impression on such a prospect, you most likely will be asked to submit your materials directly to him or his secretary. When you chat it up with anyone helpful, remember to take their business card or information so you can write them and tell them how much you enjoyed your chat and appreciate their help. Who knows? They might run across the very same prospect they recommended at a faculty meeting, or whatever, the next day with your creds fresh on their mind. For most folks making face-to-face contact like this is a little daunting. My reluctance to put myself out there in person was probably my greatest weakness when I was looking for work. You got to practice and learn new social skills if that's what you need. Never ventured nothing gained, blah, blah...