Today while looking for a wireless mouse I picked up an Airport Express. For those of you who aren't aware of this device, it is Apple's mini base-station, music streaming, usb printer sharing, network extending device. Currently, I have it set up downstairs hooked to the stereo and had it cranked up while I sat out on the porch. Currently, any mac in the house can stream music to it from iTunes. In some ways it's not a perfect solution, since in my parent's case they'd have to go upstairs to their mac to start iTunes. But for someone with a laptop or a laptop and a desktop it just plain rocks. And I'm not the only one who is loving it.
Here's where I think Apple was smart with this device. They've made it so easy to want more than one of them. I've already got one and can easily justify two more. The second I'll use in my room as a print server/wireless client. The third will go on the third floor hooked into the home theatre setup. At around $130 each it isn't something I'll pick up right away, but once I get my laser printer I know I'll be eyeing it.
Of course, then I may want one for when I'm on the road. MacMegasite has a neat article about using the Airport Express in a hotel room.