I love things I can touch. Knobs and dials. Buttons. The Griffin Twenty gives you a big honkin' dial to control your wireless music. The grace of AirPlay with the goodness of twistin' stuff.
The company's proving mum on pricing and availability ("soon"), but it should be worth the wait. Once you plug your AirPort Express into the Twenty, you'll get output for two speakers and a sub of your choice, perfect for making an ad hoc sound system for you to pour your networked library into. Or maybe you just don't want to invest a big bundle into a receiver.
EIther way, that big silver knob feels great for adjusting your tunes, and the more ways we have to use AirPlay (creatively, too!), the better.