I have used 2 airport expresses in my house for 3 years now and I love the new addition of airplay. I can now easily stream sirius throughout my home too. But one of my speakers is shot and I figure instead of just buying a new set iof speakers let me buy one of the new airplay enabled speakers. But I can't find any for sale yet. Are there any of the new speakes availbale for sale yet? if not are they coming soon?