Grace Digital hoped to stand out among Internet radio tuners with the Solo. The hub links up to any existing speaker system and streams either 18,000 preset stations, custom-programmed stations, or services like iheartradio, Live365, Pandora and Sirius over an 802.11g Wi-Fi link. Although it has built-in controls, it's unique in having the option of an iPhone app (free, App Store) that serves both as a remote control and as a way of checking track info away from the built-in screen.
