Amazon have my e-book "Green Technology Strategies" available on their Kindle electronic Book reader. The PDF, paperback and hardcover editions remain available from LuLu (and the free web version on my web site). Amazon said it would take 48 to 72 hours to approve the book for the Kindle, but took less than a 24.
I specified a list price for the book the same as the LuLu PDF version. Amazon requires that the publisher specify a price no higher than other version, but then they added $2 to the price for delivery to the international version of the Kindle, outside the USA.
One issue with the e-book is the ISBN. I used the same the ISBN I had issued for the LuLu PDF version fo the book for the Kindle e-book version. This was because I could not find any way to enter the different ISBN for the PDF version into the LuLu system: it seems to use the same ISBN as for the printed book. As the ISBN was not used by LuLu, I tought I may as well use it for the Kindle. In retrospect, this was a bad idea, as that ISBN is already registered in library and book cataloging systems around the world. So I have now requested a new ISBN for the Kindle version. That takes up to five days.