There are a few boards out there today, so I picked up:
- Zigbee shield (from Sparkfun)
- GPS shield (from Libelium)
- USB memory stick (VDIP1 from Vinculum)
They should come in over the next few weeks, and when they do, I'll be sure to provide a write-up and take plenty of pictures. I'll try to do my best to stay on top of all the available shields on the market, as well as those "in the pipeline."