Logitech this morning unveiled two expected but major updates to its Squeezebox network media streamers. The Squeezebox Touch is its first hub with a touchscreen and uses the 4.3-inch display to provide a much more flexible interface for playing music, whether from local Macs and Windows PCs or from Internet streaming like Last.fm, Rhapsody or general Internet radio. Its size better displays album art and lets users browse photos on the network.