Thanks to everyone so far. With the rest of Saturday to go (until midnight PST), my book has shot up the Amazon bestseller lists:
#9 Epic Fantasy
#18 in Mythology
#48 in Fantasy
and #831 on the Amazon Free Book list. Hitting the top 100 on Amazon lists is a big help in getting found on searches by customers. Hopefully, the free promotion will push me there for a number of days (Amazon ranks on a VERY short time-frame).
If you're having problems downloading it, you need 1) an Amazon account and if you want to actually read it you need 2) to download the Kindle reader software.
You do not need an actual Kindle to read it. You can do so on any computer, smartphone or tablet device.