The Aircurve Play is the iPhone 4 version of the Aircurve. It now works in landscape and portrait orientation. Like the Aircurve, it's the best looking amplifier/horn I've seen. I was thinking, if I don't get an iPhone 4S, or even if I do actually, I might get the Aircurve Play.
As an aside: there's something wrong with Griffin's shop site. All the links lead back to the front page.