Google will announce this month a site to sell eBooks readable on Kindles, Nooks and Sony readers.
Here is the link:
http://www.pcmag.com/article2/0,2817,2373654,00.asp
If that happens, I just may buy my eBooks for my Kindle WiFi 3 from Google if their prices are comparable to Amazon.
I have an Amazon Kindle WiFi and a Sony PRS 900. This will enable me to use either reader to read my eBooks.
Here is more information on this subject:
http://voices.washingtonpost.com/fas..._editions.html
and here:
http://books.google.com/support/part...&answer=167975