My WiFi reception hasn't been to great so I opened the back of the Cruz Reader and found that there is a mini-PCI WiFi card readily accessible. Further examination showed that there are two ports for antennas to be attached but only one is being used. I purchased some antennas on Amazon ( Laptop Notebook Wifi Bluetooth WWAN/EVDO/HSDPA Broadband Internal Antenna ), separated them, and attached one to the extra port. I then configured the antenna in a large figure-eight pattern inside the back cover taking care to not come too close to the edges or interfere with any cover attachment ports. Used cellophane tape to hold it down and put the cover back on. My WiFi connection quality nearly tripled.
I put together a tutorial with pictures on how to do this if anyone is interested:
http://tadlewis.com/CruzReader/index.html
