So let me get this straight...the Airport Express can be attached to a printer and a speaker, for wireless printing and music. The Airport Extreme can be attached to a printer and hard drive for wireless printing and time machine backup. But neither of them allow wireless printing, time machine, and music. Why is that? I just bought an Airport Express from eBay (which hasn't arrived yet), but I wish it had the capability to attach to my time machine back up in addition to the printer, speakers and cable modem. My place is too small to necessitate both the Airport Extreme and Express.