I got one about a month ago from Newark. I got a ($12) case too, and that came much sooner; the Pi took about two weeks to arrive.
Setting it up was pretty straightforward. I installed the Raspbian image to an 8gb Sd card (about $7 from Amazon), plugged the Pi directly into my router, and powered it up using one of my various microUSB chargers I have lying around.
Then I was able to get in easily using ssh. I updated the OS, added a few utilities, and started vncserver. From that point, I could access the graphical UI from a window on my Suse desktop. SSH is faster, however; the board isn't that fast.
I plugged in a spare bluetooth dongle that was not recognized by my Suse desktop, but the Pi recognized it properly and could see other bluetooth devices around the house. Neat!
I then plugged in a USB wireless dongle that I had lying around, and it came right up. Now it's completely portable around the house, no longer tied to the router. I attached a cheap webcam I had gotten a while back on ebay, and I installed motion, as per a nice how-to, and immediately the Pi became a surveillance system.
I was going to set it up in front of the house, but then I got the idea I wanted to interface it to my electronic piano in the living room. I got a $6.75 MIDI-to-USB cable and attached the Pi to the piano. Previously I had an identical cable working nicely with a midi keyboard and my Suse desktop. This one did not seem to register as a midi device; I'm going to have to find a driver, or else write some software of my own. My goal is to have a tablet-controlled midi sequencer, so that I can record midi to the Pi and play it back through the piano. A bigger project than I've had time for up to now, but I hope to get to it soon.
It's a fun little board and I highly recommend it to anyone who enjoys hacking around with Linux and automating things around the house. There's probably fifty other uses for it that I haven't thought of yet.